text: /**
   * @preserve jquery.layout 1.3.0 - Release Candidate 29.15
   * $Date: 2011-06-25 08:00:00 (Sat, 25 Jun 2011) $
   * $Rev: 302915 $
   *
   * Copyright (c) 2010 
   *   Fabrizio Balliano (http://www.fabrizioballiano.net)
   *   Kevin Dalman (http://allpro.net)
   *
   * Dual licensed under the GPL (http://www.gnu.org/licenses/gpl.html)
   * and MIT (http://www.opensource.org/licenses/mit-license.php) licenses.
   *
   * Changelog: http://layout.jquery-dev.net/changelog.cfm#1.3.0.rc29.15
   *
   * Docs: http://layout.jquery-dev.net/documentation.html
   * Tips: http://layout.jquery-dev.net/tips.html
   * Help: http://groups.google.com/group/jquery-ui-layout
   */
  
  // NOTE: For best readability, view with a fixed-width font and tabs equal to 4-chars
  
  ;(function ($) {
  
  /*
   *	GENERIC $.layout METHODS - used by all layouts
   */
  $.layout = {
  
  	version:	"1.3.rc29.15"
  ,	revision:	0.032915 // 1.3.0 final = 1.0300 - major(n+).minor(nn)+patch(nn+)
  
  	// LANGUAGE CUSTOMIZATION
  ,	language: {
  	//	Tips and messages for resizers, togglers, custom buttons, etc.
  		Open:			"Open"	// eg: "Open Pane"
  	,	Close:			"Close"
  	,	Resize:			"Resize"
  	,	Slide:			"Slide Open"
  	,	Pin:			"Pin"
  	,	Unpin:			"Un-Pin"
  	,	noRoomToOpenTip: "Not enough room to show this pane."
  	//	Developer error messages
  	,	pane:					"pane"		// description of "layout pane element"
  	,	selector:				"selector"	// description of "jQuery-selector"
  	,	errButton:				"Error Adding Button \n\nInvalid "
  	,	errContainerMissing:	"UI Layout Initialization Error\n\nThe specified layout-container does not exist."
  	,	errCenterPaneMissing:	"UI Layout Initialization Error\n\nThe center-pane element does not exist.\n\nThe center-pane is a required element."
  	,	errContainerHeight:		"UI Layout Initialization Warning\n\nThe layout-container \"CONTAINER\" has no height.\n\nTherefore the layout is 0-height and hence 'invisible'!"
  	}
  
  	// can update code here if $.browser is phased out
  ,	browser: {
  		mozilla:	!!$.browser.mozilla
  	,	webkit:		!!$.browser.webkit || !!$.browser.safari // webkit = jQ 1.4
  	,	msie:		!!$.browser.msie
  	,	isIE6:		!!$.browser.msie && $.browser.version == 6
  	,	boxModel:	false	// page must load first, so will be updated set by _create
  	//,	version:	$.browser.version - not used
  	}
  
  	/*
  	*	GENERIC UTILITY METHODS
  	*/
  
  	// calculate and return the scrollbar width, as an integer
  ,	scrollbarWidth:		function () { return window.scrollbarWidth  || $.layout.getScrollbarSize('width'); }
  ,	scrollbarHeight:	function () { return window.scrollbarHeight || $.layout.getScrollbarSize('height'); }
  ,	getScrollbarSize:	function (dim) {
  		var $c	= $('<div style="position: absolute; top: -10000px; left: -10000px; width: 100px; height: 100px; overflow: scroll;"></div>').appendTo("body");
  		var d	= { width: $c.width() - $c[0].clientWidth, height: $c.height() - $c[0].clientHeight };
  		$c.remove();
  		window.scrollbarWidth	= d.width;
  		window.scrollbarHeight	= d.height;
  		return dim.match(/^(width|height)$/i) ? d[dim] : d;
  	}
  
  
  	/**
  	* Returns hash container 'display' and 'visibility'
  	*
  	* @see	$.swap() - swaps CSS, runs callback, resets CSS
  	*/
  ,	showInvisibly: function ($E, force) {
  		if (!$E) return {};
  		if (!$E.jquery) $E = $($E);
  		var CSS = {
  			display:	$E.css('display')
  		,	visibility:	$E.css('visibility')
  		};
  		if (force || CSS.display == "none") { // only if not *already hidden*
  			$E.css({ display: "block", visibility: "hidden" }); // show element 'invisibly' so can be measured
  			return CSS;
  		}
  		else return {};
  	}
  
  	/**
  	* Returns data for setting size of an element (container or a pane).
  	*
  	* @see  _create(), onWindowResize() for container, plus others for pane
  	* @return JSON  Returns a hash of all dimensions: top, bottom, left, right, outerWidth, innerHeight, etc
  	*/
  ,	getElementDimensions: function ($E) {
  		var
  			d	= {}			// dimensions hash
  		,	x	= d.css = {}	// CSS hash
  		,	i	= {}			// TEMP insets
  		,	b, p				// TEMP border, padding
  		,	N	= $.layout.cssNum
  		,	off = $E.offset()
  		;
  		d.offsetLeft = off.left;
  		d.offsetTop  = off.top;
  
  		$.each("Left,Right,Top,Bottom".split(","), function (idx, e) { // e = edge
  			b = x["border" + e] = $.layout.borderWidth($E, e);
  			p = x["padding"+ e] = $.layout.cssNum($E, "padding"+e);
  			i[e] = b + p; // total offset of content from outer side
  			d["inset"+ e] = p;
  		});
  
  		d.offsetWidth	= $E.innerWidth();
  		d.offsetHeight	= $E.innerHeight();
  		d.outerWidth	= $E.outerWidth();
  		d.outerHeight	= $E.outerHeight();
  		d.innerWidth	= Math.max(0, d.outerWidth  - i.Left - i.Right);
  		d.innerHeight	= Math.max(0, d.outerHeight - i.Top  - i.Bottom);
  
  		x.width		= $E.width();
  		x.height	= $E.height();
  		x.top		= N($E,"top",true);
  		x.bottom	= N($E,"bottom",true);
  		x.left		= N($E,"left",true);
  		x.right		= N($E,"right",true);
  
  		//d.visible	= $E.is(":visible");// && x.width > 0 && x.height > 0;
  
  		return d;
  	}
  
  ,	getElementCSS: function ($E, list) {
  		var
  			CSS	= {}
  		,	style	= $E[0].style
  		,	props	= list.split(",")
  		,	sides	= "Top,Bottom,Left,Right".split(",")
  		,	attrs	= "Color,Style,Width".split(",")
  		,	p, s, a, i, j, k
  		;
  		for (i=0; i < props.length; i++) {
  			p = props[i];
  			if (p.match(/(border|padding|margin)$/))
  				for (j=0; j < 4; j++) {
  					s = sides[j];
  					if (p == "border")
  						for (k=0; k < 3; k++) {
  							a = attrs[k];
  							CSS[p+s+a] = style[p+s+a];
  						}
  					else
  						CSS[p+s] = style[p+s];
  				}
  			else
  				CSS[p] = style[p];
  		};
  		return CSS
  	}
  
  	/**
  	* Contains logic to check boxModel & browser, and return the correct width/height for the current browser/doctype
  	*
  	* @see  initPanes(), sizeMidPanes(), initHandles(), sizeHandles()
  	* @param  {Array.<Object>}	$E  Must pass a jQuery object - first element is processed
  	* @param  {number=}			outerWidth/outerHeight  (optional) Can pass a width, allowing calculations BEFORE element is resized
  	* @return {number}		Returns the innerWidth/Height of the elem by subtracting padding and borders
  	*/
  ,	cssWidth: function ($E, outerWidth) {
  		var
  			b = $.layout.borderWidth
  		,	n = $.layout.cssNum
  		;
  		// a 'calculated' outerHeight can be passed so borders and/or padding are removed if needed
  		if (outerWidth <= 0) return 0;
  
  		if (!$.layout.browser.boxModel) return outerWidth;
  
  		// strip border and padding from outerWidth to get CSS Width
  		var W = outerWidth
  			- b($E, "Left")
  			- b($E, "Right")
  			- n($E, "paddingLeft")		
  			- n($E, "paddingRight")
  		;
  
  		return Math.max(0,W);
  	}
  
  ,	cssHeight: function ($E, outerHeight) {
  		var
  			b = $.layout.borderWidth
  		,	n = $.layout.cssNum
  		;
  		// a 'calculated' outerHeight can be passed so borders and/or padding are removed if needed
  		if (outerHeight <= 0) return 0;
  
  		if (!$.layout.browser.boxModel) return outerHeight;
  
  		// strip border and padding from outerHeight to get CSS Height
  		var H = outerHeight
  			- b($E, "Top")
  			- b($E, "Bottom")
  			- n($E, "paddingTop")
  			- n($E, "paddingBottom")
  		;
  
  		return Math.max(0,H);
  	}
  
  	/**
  	* Returns the 'current CSS numeric value' for a CSS property - 0 if property does not exist
  	*
  	* @see  Called by many methods
  	* @param {Array.<Object>}	$E			Must pass a jQuery object - first element is processed
  	* @param {string}			prop		The name of the CSS property, eg: top, width, etc.
  	* @param {boolean=}			allowAuto	true = return 'auto' if that is value; false = return 0
  	* @return {(string|number)}				Usually used to get an integer value for position (top, left) or size (height, width)
  	*/
  ,	cssNum: function ($E, prop, allowAuto) {
  		if (!$E.jquery) $E = $($E);
  		var CSS = $.layout.showInvisibly($E)
  		,	p	= $.curCSS($E[0], prop, true)
  		,	v	= allowAuto && p=="auto" ? p : (parseInt(p, 10) || 0);
  		$E.css( CSS ); // RESET
  		return v;
  	}
  
  ,	borderWidth: function (el, side) {
  		if (el.jquery) el = el[0];
  		var b = "border"+ side.substr(0,1).toUpperCase() + side.substr(1); // left => Left
  		return $.curCSS(el, b+"Style", true) == "none" ? 0 : (parseInt($.curCSS(el, b+"Width", true), 10) || 0);
  	}
  
  
  	/**
  	* UTLITY for mouse tracking - FUTURE REFERENCE
  	*
  	* init: if (!window.mouse) {
  	*			window.mouse = { x: 0, y: 0 };
  	*			$(document).mousemove( $.layout.trackMouse );
  	*		}
  	*
  	* @param {Object}		evt
  	*
  ,	trackMouse: function (evt) {
  		window.mouse = { x: evt.clientX, y: evt.clientY };
  	}
  	*/
  
  	/**
  	* SUBROUTINE for preventPrematureSlideClose option
  	*
  	* @param {Object}		evt
  	* @param {Object=}		el
  	*/
  ,	isMouseOverElem: function (evt, el) {
  		var
  			$E	= $(el || this)
  		,	d	= $E.offset()
  		,	T	= d.top
  		,	L	= d.left
  		,	R	= L + $E.outerWidth()
  		,	B	= T + $E.outerHeight()
  		,	x	= evt.pageX	// evt.clientX ?
  		,	y	= evt.pageY	// evt.clientY ?
  		;
  		// if X & Y are < 0, probably means is over an open SELECT
  		return ($.layout.browser.msie && x < 0 && y < 0) || ((x >= L && x <= R) && (y >= T && y <= B));
  	}
  
  };
  
  $.fn.layout = function (opts) {
  
  /*
   * ###########################
   *   WIDGET CONFIG & OPTIONS
   * ###########################
   */
  	var
  
  	// LANGUAGE - for tips & messages
  	lang = $.layout.language // internal alias
  
  	// DEFAULT OPTIONS - CHANGE IF DESIRED
  ,	options = {
  		name:						""			// Not required, but useful for buttons and used for the state-cookie
  	,	containerClass:				"ui-layout-container" // layout-container element
  	,	scrollToBookmarkOnLoad:		true		// after creating a layout, scroll to bookmark in URL (.../page.htm#myBookmark)
  	,	resizeWithWindow:			true		// bind thisLayout.resizeAll() to the window.resize event
  	,	resizeWithWindowDelay:		200			// delay calling resizeAll because makes window resizing very jerky
  	,	resizeWithWindowMaxDelay:	0			// 0 = none - force resize every XX ms while window is being resized
  	,	onresizeall_start:			null		// CALLBACK when resizeAll() STARTS	- NOT pane-specific
  	,	onresizeall_end:			null		// CALLBACK when resizeAll() ENDS	- NOT pane-specific
  	,	onload_start:				null		// CALLBACK when Layout inits - after options initialized, but before elements
  	,	onload_end:					null		// CALLBACK when Layout inits - after EVERYTHING has been initialized
  	,	onunload_start:				null		// CALLBACK when Layout is destroyed OR onWindowUnload
  	,	onunload_end:				null		// CALLBACK when Layout is destroyed OR onWindowUnload
  	,	autoBindCustomButtons:		false		// search for buttons with ui-layout-button class and auto-bind them
  	,	zIndex:						null		// the PANE zIndex - resizers and masks will be +1
  	,	initPanes:					true		// false = DO NOT initialize the panes onLoad - will init later
  	,	showErrorMessages:			true		// enables fatal error messages to warn developers of common errors
  	//	PANE SETTINGS
  	,	defaults: { // default options for 'all panes' - will be overridden by 'per-pane settings'
  			applyDemoStyles: 		false		// NOTE: renamed from applyDefaultStyles for clarity
  		,	closable:				true		// pane can open & close
  		,	resizable:				true		// when open, pane can be resized 
  		,	slidable:				true		// when closed, pane can 'slide open' over other panes - closes on mouse-out
  		,	initClosed:				false		// true = init pane as 'closed'
  		,	initHidden: 			false 		// true = init pane as 'hidden' - no resizer-bar/spacing
  		//	SELECTORS
  		//,	paneSelector:			""			// MUST be pane-specific - jQuery selector for pane
  		,	contentSelector:		".ui-layout-content" // INNER div/element to auto-size so only it scrolls, not the entire pane!
  		,	contentIgnoreSelector:	".ui-layout-ignore"	// element(s) to 'ignore' when measuring 'content'
  		,	findNestedContent:		false		// true = $P.find(contentSelector), false = $P.children(contentSelector)
  		//	GENERIC ROOT-CLASSES - for auto-generated classNames
  		,	paneClass:				"ui-layout-pane"	// border-Pane - default: 'ui-layout-pane'
  		,	resizerClass:			"ui-layout-resizer"	// Resizer Bar		- default: 'ui-layout-resizer'
  		,	togglerClass:			"ui-layout-toggler"	// Toggler Button	- default: 'ui-layout-toggler'
  		,	buttonClass:			"ui-layout-button"	// CUSTOM Buttons	- default: 'ui-layout-button-toggle/-open/-close/-pin'
  		//	ELEMENT SIZE & SPACING
  		//,	size:					100			// MUST be pane-specific -initial size of pane
  		,	minSize:				0			// when manually resizing a pane
  		,	maxSize:				0			// ditto, 0 = no limit
  		,	spacing_open:			6			// space between pane and adjacent panes - when pane is 'open'
  		,	spacing_closed:			6			// ditto - when pane is 'closed'
  		,	togglerLength_open:		50			// Length = WIDTH of toggler button on north/south sides - HEIGHT on east/west sides
  		,	togglerLength_closed: 	50			// 100% OR -1 means 'full height/width of resizer bar' - 0 means 'hidden'
  		,	togglerAlign_open:		"center"	// top/left, bottom/right, center, OR...
  		,	togglerAlign_closed:	"center"	// 1 => nn = offset from top/left, -1 => -nn == offset from bottom/right
  		,	togglerTip_open:		lang.Close	// Toggler tool-tip (title)
  		,	togglerTip_closed:		lang.Open	// ditto
  		,	togglerContent_open:	""			// text or HTML to put INSIDE the toggler
  		,	togglerContent_closed:	""			// ditto
  		//	RESIZING OPTIONS
  		,	resizerDblClickToggle:	true		// 
  		,	autoResize:				true		// IF size is 'auto' or a percentage, then recalc 'pixel size' whenever the layout resizes
  		,	autoReopen:				true		// IF a pane was auto-closed due to noRoom, reopen it when there is room? False = leave it closed
  		,	resizerDragOpacity:		1			// option for ui.draggable
  		//,	resizerCursor:			""			// MUST be pane-specific - cursor when over resizer-bar
  		,	maskIframesOnResize:	true		// true = all iframes OR = iframe-selector(s) - adds masking-div during resizing/dragging
  		,	resizeNestedLayout:		true		// true = trigger nested.resizeAll() when a 'pane' of this layout is the 'container' for another
  		,	resizeWhileDragging:	false		// true = LIVE Resizing as resizer is dragged
  		,	resizeContentWhileDragging:	false	// true = re-measure header/footer heights as resizer is dragged
  		//	TIPS & MESSAGES - also see lang object
  		,	noRoomToOpenTip:		lang.noRoomToOpenTip
  		,	resizerTip:				lang.Resize	// Resizer tool-tip (title)
  		,	sliderTip:				lang.Slide	// resizer-bar triggers 'sliding' when pane is closed
  		,	sliderCursor:			"pointer"	// cursor when resizer-bar will trigger 'sliding'
  		,	slideTrigger_open:		"click"		// click, dblclick, mouseenter
  		,	slideTrigger_close:		"mouseleave"// click, mouseleave
  		,	slideDelay_open:		300			// applies only for mouseenter event - 0 = instant open
  		,	slideDelay_close:		300			// applies only for mouseleave event (300ms is the minimum!)
  		,	hideTogglerOnSlide:		false		// when pane is slid-open, should the toggler show?
  		,	preventQuickSlideClose:	$.layout.browser.webkit // Chrome triggers slideClosed as it is opening
  		,	preventPrematureSlideClose: false
  		//	HOT-KEYS & MISC
  		,	showOverflowOnHover:	false		// will bind allowOverflow() utility to pane.onMouseOver
  		,	enableCursorHotkey:		true		// enabled 'cursor' hotkeys
  		//,	customHotkey:			""			// MUST be pane-specific - EITHER a charCode OR a character
  		,	customHotkeyModifier:	"SHIFT"		// either 'SHIFT', 'CTRL' or 'CTRL+SHIFT' - NOT 'ALT'
  		//	PANE ANIMATION
  		//	NOTE: fxSss_open & fxSss_close options (eg: fxName_open) are auto-generated if not passed
  		,	fxName:					"slide" 	// ('none' or blank), slide, drop, scale
  		,	fxSpeed:				null		// slow, normal, fast, 200, nnn - if passed, will OVERRIDE fxSettings.duration
  		,	fxSettings:				{}			// can be passed, eg: { easing: "easeOutBounce", duration: 1500 }
  		,	fxOpacityFix:			true		// tries to fix opacity in IE to restore anti-aliasing after animation
  		//	CALLBACKS
  		,	triggerEventsOnLoad:	false		// true = trigger onopen OR onclose callbacks when layout initializes
  		,	triggerEventsWhileDragging: true	// true = trigger onresize callback REPEATEDLY if resizeWhileDragging==true
  		,	onshow_start:			null		// CALLBACK when pane STARTS to Show	- BEFORE onopen/onhide_start
  		,	onshow_end:				null		// CALLBACK when pane ENDS being Shown	- AFTER  onopen/onhide_end
  		,	onhide_start:			null		// CALLBACK when pane STARTS to Close	- BEFORE onclose_start
  		,	onhide_end:				null		// CALLBACK when pane ENDS being Closed	- AFTER  onclose_end
  		,	onopen_start:			null		// CALLBACK when pane STARTS to Open
  		,	onopen_end:				null		// CALLBACK when pane ENDS being Opened
  		,	onclose_start:			null		// CALLBACK when pane STARTS to Close
  		,	onclose_end:			null		// CALLBACK when pane ENDS being Closed
  		,	onresize_start:			null		// CALLBACK when pane STARTS being Resized ***FOR ANY REASON***
  		,	onresize_end:			null		// CALLBACK when pane ENDS being Resized ***FOR ANY REASON***
  		,	onsizecontent_start:	null		// CALLBACK when sizing of content-element STARTS
  		,	onsizecontent_end:		null		// CALLBACK when sizing of content-element ENDS
  		,	onswap_start:			null		// CALLBACK when pane STARTS to Swap
  		,	onswap_end:				null		// CALLBACK when pane ENDS being Swapped
  		,	ondrag_start:			null		// CALLBACK when pane STARTS being ***MANUALLY*** Resized
  		,	ondrag_end:				null		// CALLBACK when pane ENDS being ***MANUALLY*** Resized
  		}
  	,	north: {
  			paneSelector:			".ui-layout-north"
  		,	size:					"auto"		// eg: "auto", "30%", 200
  		,	resizerCursor:			"n-resize"	// custom = url(myCursor.cur)
  		,	customHotkey:			""			// EITHER a charCode OR a character
  		}
  	,	south: {
  			paneSelector:			".ui-layout-south"
  		,	size:					"auto"
  		,	resizerCursor:			"s-resize"
  		,	customHotkey:			""
  		}
  	,	east: {
  			paneSelector:			".ui-layout-east"
  		,	size:					200
  		,	resizerCursor:			"e-resize"
  		,	customHotkey:			""
  		}
  	,	west: {
  			paneSelector:			".ui-layout-west"
  		,	size:					200
  		,	resizerCursor:			"w-resize"
  		,	customHotkey:			""
  		}
  	,	center: {
  			paneSelector:			".ui-layout-center"
  		,	minWidth:				0
  		,	minHeight:				0
  		}
  
  	//	STATE MANAGMENT
  	,	useStateCookie:				false		// Enable cookie-based state-management - can fine-tune with cookie.autoLoad/autoSave
  	,	cookie: {
  			name:					""			// If not specified, will use Layout.name, else just "Layout"
  		,	autoSave:				true		// Save a state cookie when page exits?
  		,	autoLoad:				true		// Load the state cookie when Layout inits?
  		//	Cookie Options
  		,	domain:					""
  		,	path:					""
  		,	expires:				""			// 'days' to keep cookie - leave blank for 'session cookie'
  		,	secure:					false
  		//	List of options to save in the cookie - must be pane-specific
  		,	keys:					"north.size,south.size,east.size,west.size,"+
  									"north.isClosed,south.isClosed,east.isClosed,west.isClosed,"+
  									"north.isHidden,south.isHidden,east.isHidden,west.isHidden"
  		}
  	}
  
  
  	// PREDEFINED EFFECTS / DEFAULTS
  ,	effects = { // LIST *PREDEFINED EFFECTS* HERE, even if effect has no settings
  		slide:	{
  			all:	{ duration:  "fast"	} // eg: duration: 1000, easing: "easeOutBounce"
  		,	north:	{ direction: "up"	}
  		,	south:	{ direction: "down"	}
  		,	east:	{ direction: "right"}
  		,	west:	{ direction: "left"	}
  		}
  	,	drop:	{
  			all:	{ duration:  "slow"	} // eg: duration: 1000, easing: "easeOutQuint"
  		,	north:	{ direction: "up"	}
  		,	south:	{ direction: "down"	}
  		,	east:	{ direction: "right"}
  		,	west:	{ direction: "left"	}
  		}
  	,	scale:	{
  			all:	{ duration:  "fast"	}
  		}
  	}
  
  
  	// DYNAMIC DATA - IS READ-ONLY EXTERNALLY!
  ,	state = {
  		// generate unique ID to use for event.namespace so can unbind only events added by 'this layout'
  		id:			"layout"+ new Date().getTime()	// code uses alias: sID
  	,	initialized: false
  	,	container:	{} // init all keys
  	,	north:		{}
  	,	south:		{}
  	,	east:		{}
  	,	west:		{}
  	,	center:		{}
  	,	cookie:		{} // State Managment data storage
  	}
  
  
  	// INTERNAL CONFIG DATA - DO NOT CHANGE THIS!
  ,	_c = {
  		allPanes:		"north,south,west,east,center"
  	,	borderPanes:	"north,south,west,east"
  	,	altSide: {
  			north:	"south"
  		,	south:	"north"
  		,	east: 	"west"
  		,	west: 	"east"
  		}
  	//	CSS used in multiple places
  	,	hidden:  { visibility: "hidden" }
  	,	visible: { visibility: "visible" }
  	//	layout element settings
  	,	zIndex: { // set z-index values here
  			pane_normal:	1		// normal z-index for panes
  		,	resizer_normal:	2		// normal z-index for resizer-bars
  		,	iframe_mask:	2		// overlay div used to mask pane(s) during resizing
  		,	pane_sliding:	100		// applied to *BOTH* the pane and its resizer when a pane is 'slid open'
  		,	pane_animate:	1000	// applied to the pane when being animated - not applied to the resizer
  		,	resizer_drag:	10000	// applied to the CLONED resizer-bar when being 'dragged'
  		}
  	,	resizers: {
  			cssReq: {
  				position: 	"absolute"
  			,	padding: 	0
  			,	margin: 	0
  			,	fontSize:	"1px"
  			,	textAlign:	"left"	// to counter-act "center" alignment!
  			,	overflow: 	"hidden" // prevent toggler-button from overflowing
  			//	SEE c.zIndex.resizer_normal
  			}
  		,	cssDemo: { // DEMO CSS - applied if: options.PANE.applyDemoStyles=true
  				background: "#DDD"
  			,	border:		"none"
  			}
  		}
  	,	togglers: {
  			cssReq: {
  				position: 	"absolute"
  			,	display: 	"block"
  			,	padding: 	0
  			,	margin: 	0
  			,	overflow:	"hidden"
  			,	textAlign:	"center"
  			,	fontSize:	"1px"
  			,	cursor: 	"pointer"
  			,	zIndex: 	1
  			}
  		,	cssDemo: { // DEMO CSS - applied if: options.PANE.applyDemoStyles=true
  				background: "#AAA"
  			}
  		}
  	,	content: {
  			cssReq: {
  				position:	"relative" /* contain floated or positioned elements */
  			}
  		,	cssDemo: { // DEMO CSS - applied if: options.PANE.applyDemoStyles=true
  				overflow:	"auto"
  			,	padding:	"10px"
  			}
  		,	cssDemoPane: { // DEMO CSS - REMOVE scrolling from 'pane' when it has a content-div
  				overflow:	"hidden"
  			,	padding:	0
  			}
  		}
  	,	panes: { // defaults for ALL panes - overridden by 'per-pane settings' below
  			cssReq: {
  				position: 	"absolute"
  			,	margin:		0
  			//	SEE c.zIndex.pane_normal
  			}
  		,	cssDemo: { // DEMO CSS - applied if: options.PANE.applyDemoStyles=true
  				padding:	"10px"
  			,	background:	"#FFF"
  			,	border:		"1px solid #BBB"
  			,	overflow:	"auto"
  			}
  		}
  	,	north: {
  			side:			"Top"
  		,	sizeType:		"Height"
  		,	dir:			"horz"
  		,	cssReq: {
  				top: 		0
  			,	bottom: 	"auto"
  			,	left: 		0
  			,	right: 		0
  			,	width: 		"auto"
  			//	height: 	DYNAMIC
  			}
  		,	pins:			[]	// array of 'pin buttons' to be auto-updated on open/close (classNames)
  		}
  	,	south: {
  			side:			"Bottom"
  		,	sizeType:		"Height"
  		,	dir:			"horz"
  		,	cssReq: {
  				top: 		"auto"
  			,	bottom: 	0
  			,	left: 		0
  			,	right: 		0
  			,	width: 		"auto"
  			//	height: 	DYNAMIC
  			}
  		,	pins:			[]
  		}
  	,	east: {
  			side:			"Right"
  		,	sizeType:		"Width"
  		,	dir:			"vert"
  		,	cssReq: {
  				left: 		"auto"
  			,	right: 		0
  			,	top: 		"auto" // DYNAMIC
  			,	bottom: 	"auto" // DYNAMIC
  			,	height: 	"auto"
  			//	width: 		DYNAMIC
  			}
  		,	pins:			[]
  		}
  	,	west: {
  			side:			"Left"
  		,	sizeType:		"Width"
  		,	dir:			"vert"
  		,	cssReq: {
  				left: 		0
  			,	right: 		"auto"
  			,	top: 		"auto" // DYNAMIC
  			,	bottom: 	"auto" // DYNAMIC
  			,	height: 	"auto"
  			//	width: 		DYNAMIC
  			}
  		,	pins:			[]
  		}
  	,	center: {
  			dir:			"center"
  		,	cssReq: {
  				left: 		"auto" // DYNAMIC
  			,	right: 		"auto" // DYNAMIC
  			,	top: 		"auto" // DYNAMIC
  			,	bottom: 	"auto" // DYNAMIC
  			,	height: 	"auto"
  			,	width: 		"auto"
  			}
  		}
  	}
  
  
  /*
   * ###########################
   *  INTERNAL HELPER FUNCTIONS
   * ###########################
   */
  
  	/**
  	* Manages all internal timers
  	*/
  ,	timer = {
  		data:	{}
  	,	set:	function (s, fn, ms) { timer.clear(s); timer.data[s] = setTimeout(fn, ms); }
  	,	clear:	function (s) { var t=timer.data; if (t[s]) {clearTimeout(t[s]); delete t[s];} }
  	}
  
  	/**
  	* Returns true if passed param is EITHER a simple string OR a 'string object' - otherwise returns false
  	*/
  ,	isStr = function (o) {
  		try { return typeof o == "string"
  				 || (typeof o == "object" && o.constructor.toString().match(/string/i) !== null); }
  		catch (e) { return false; }
  	}
  
  	/**
  	* Returns a simple string if passed EITHER a simple string OR a 'string object',
  	* else returns the original object
  	*/
  ,	str = function (o) { // trim converts 'String object' to a simple string
  		return isStr(o) ? $.trim(o) : o == undefined || o == null ? "" : o;
  	}
  
  	/**
  	* min / max
  	*
  	* Aliases for Math methods to simplify coding
  	*/
  ,	min = function (x,y) { return Math.min(x,y); }
  ,	max = function (x,y) { return Math.max(x,y); }
  
  	/**
  	* Processes the options passed in and transforms them into the format used by layout()
  	* Missing keys are added, and converts the data if passed in 'flat-format' (no sub-keys)
  	* In flat-format, pane-specific-settings are prefixed like: north__optName  (2-underscores)
  	* To update effects, options MUST use nested-keys format, with an effects key ???
  	*
  	* @see	initOptions()
  	* @param	{Object}	d	Data/options passed by user - may be a single level or nested levels
  	* @return	{Object}		Creates a data struture that perfectly matches 'options', ready to be imported
  	*/
  ,	_transformData = function (d) {
  		var a, json = { cookie:{}, defaults:{fxSettings:{}}, north:{fxSettings:{}}, south:{fxSettings:{}}, east:{fxSettings:{}}, west:{fxSettings:{}}, center:{fxSettings:{}} };
  		d = d || {};
  		if (d.effects || d.cookie || d.defaults || d.north || d.south || d.west || d.east || d.center)
  			json = $.extend( true, json, d ); // already in json format - add to base keys
  		else
  			// convert 'flat' to 'nest-keys' format - also handles 'empty' user-options
  			$.each( d, function (key,val) {
  				a = key.split("__");
  				if (!a[1] || json[a[0]]) // check for invalid keys
  					json[ a[1] ? a[0] : "defaults" ][ a[1] ? a[1] : a[0] ] = val;
  			});
  		return json;
  	}
  
  	/**
  	* Set an INTERNAL callback to avoid simultaneous animation
  	* Runs only if needed and only if all callbacks are not 'already set'
  	* Called by open() and close() when isLayoutBusy=true
  	*
  	* @param {string}		action	Either 'open' or 'close'
  	* @param {string}		pane	A valid border-pane name, eg 'west'
  	* @param {boolean=}		param	Extra param for callback (optional)
  	*/
  ,	_queue = function (action, pane, param) {
  		var tried = [];
  
  		// if isLayoutBusy, then some pane must be 'moving'
  		$.each(_c.borderPanes.split(","), function (i, p) {
  			if (_c[p].isMoving) {
  				bindCallback(p); // TRY to bind a callback
  				return false;	// BREAK
  			}
  		});
  
  		// if pane does NOT have a callback, then add one, else follow the callback chain...
  		function bindCallback (p) {
  			var c = _c[p];
  			if (!c.doCallback) {
  				c.doCallback = true;
  				c.callback = action +","+ pane +","+ (param ? 1 : 0);
  			}
  			else { // try to 'chain' this callback
  				tried.push(p);
  				var cbPane = c.callback.split(",")[1]; // 2nd param of callback is 'pane'
  				// ensure callback target NOT 'itself' and NOT 'target pane' and NOT already tried (avoid loop)
  				if (cbPane != pane && !$.inArray(cbPane, tried) >= 0)
  					bindCallback(cbPane); // RECURSE
  			}
  		}
  	}
  
  	/**
  	* RUN the INTERNAL callback for this pane - if one exists
  	*
  	* @param {string}	pane	A valid border-pane name, eg 'west'
  	*/
  ,	_dequeue = function (pane) {
  		var c = _c[pane];
  
  		// RESET flow-control flags
  		_c.isLayoutBusy = false;
  		delete c.isMoving;
  		if (!c.doCallback || !c.callback) return;
  
  		c.doCallback = false; // RESET logic flag
  
  		// EXECUTE the callback
  		var
  			cb = c.callback.split(",")
  		,	param = (cb[2] > 0 ? true : false)
  		;
  		if (cb[0] == "open")
  			open( cb[1], param  );
  		else if (cb[0] == "close")
  			close( cb[1], param );
  
  		if (!c.doCallback) c.callback = null; // RESET - unless callback above enabled it again!
  	}
  
  	/**
  	* Executes a Callback function after a trigger event, like resize, open or close
  	*
  	* @param {?string}				pane	This is passed only so we can pass the 'pane object' to the callback
  	* @param {(string|function())}	v_fn	Accepts a function name, OR a comma-delimited array: [0]=function name, [1]=argument
  	*/
  ,	_execCallback = function (pane, v_fn) {
  		if (!v_fn) return;
  		var fn;
  		try {
  			if (typeof v_fn == "function")
  				fn = v_fn;	
  			else if (!isStr(v_fn))
  				return;
  			else if (v_fn.match(/,/)) {
  				// function name cannot contain a comma, so must be a function name AND a 'name' parameter
  				var args = v_fn.split(",");
  				fn = eval(args[0]);
  				if (typeof fn=="function" && args.length > 1)
  					return fn(args[1]); // pass the argument parsed from 'list'
  			}
  			else // just the name of an external function?
  				fn = eval(v_fn);
  
  			if (typeof fn=="function") {
  				if (pane && $Ps[pane])
  					// pass data: pane-name, pane-element, pane-state, pane-options, and layout-name
  					return fn( pane, $Ps[pane], state[pane], options[pane], options.name );
  				else // must be a layout/container callback - pass suitable info
  					return fn( Instance, state, options, options.name );
  			}
  		}
  		catch (ex) {}
  	}
  
  	/**
  	* cure iframe display issues in IE & other browsers
  	*/
  ,	_fixIframe = function (pane) {
  		if ($.layout.browser.mozilla) return; // skip FireFox - it auto-refreshes iframes onShow
  		var $P = $Ps[pane];
  		// if the 'pane' is an iframe, do it
  		if (state[pane].tagName == "IFRAME")
  			$P.css(_c.hidden).css(_c.visible); 
  		else // ditto for any iframes INSIDE the pane
  			$P.find('IFRAME').css(_c.hidden).css(_c.visible);
  	}
  
  	/**
  	* cssW / cssH / cssSize / cssMinDims
  	*
  	* Contains logic to check boxModel & browser, and return the correct width/height for the current browser/doctype
  	*
  	* @see  initPanes(), sizeMidPanes(), initHandles(), sizeHandles()
  	* @param  {(string|!Object)}	el			Can accept a 'pane' (east, west, etc) OR a DOM object OR a jQuery object
  	* @param  {number=}				outerWidth	(optional) Can pass a width, allowing calculations BEFORE element is resized
  	* @return {number}							Returns the innerWidth of el by subtracting padding and borders
  	*/
  ,	cssW = function (el, outerWidth) {
  		var	str	= isStr(el)
  		,	$E	= str ? $Ps[el] : $(el)
  		;
  		if (!$E.length) return 0;
  		if (isNaN(outerWidth)) // not specified
  			outerWidth = str ? getPaneSize(el) : $E.outerWidth();
  		return $.layout.cssWidth($E, outerWidth);
  	}
  
  	/**
  	* @param  {(string|!Object)}	el			Can accept a 'pane' (east, west, etc) OR a DOM object OR a jQuery object
  	* @param  {number=}				outerHeight	(optional) Can pass a width, allowing calculations BEFORE element is resized
  	* @return {number}				Returns the innerHeight el by subtracting padding and borders
  	*/
  ,	cssH = function (el, outerHeight) {
  		var	str	= isStr(el)
  		,	$E	= str ? $Ps[el] : $(el)
  		;
  		if (!$E.length) return 0;
  		if (isNaN(outerHeight)) // not specified
  			outerHeight = str ? getPaneSize(el) : $E.outerHeight();
  		return $.layout.cssHeight($E, outerHeight);
  	}
  
  	/**
  	* @param  {string}		pane		Can accept ONLY a 'pane' (east, west, etc)
  	* @param  {number=}		outerSize	(optional) Can pass a width, allowing calculations BEFORE element is resized
  	* @return {number}		Returns the innerHeight/Width of el by subtracting padding and borders
  	*/
  ,	cssSize = function (pane, outerSize) {
  		if (_c[pane].dir=="horz") // pane = north or south
  			return cssH(pane, outerSize);
  		else // pane = east or west
  			return cssW(pane, outerSize);
  	}
  
  	/**
  	* @param  {string}		pane		Can accept ONLY a 'pane' (east, west, etc)
  	* @return {Object}		Returns hash of minWidth & minHeight
  	*/
  ,	cssMinDims = function (pane) {
  		// minWidth/Height means CSS width/height = 1px
  		var
  			dir = _c[pane].dir
  		,	d = {
  				minWidth:	1001 - cssW(pane, 1000)
  			,	minHeight:	1001 - cssH(pane, 1000)
  			}
  		;
  		if (dir == "horz") d.minSize = d.minHeight;
  		if (dir == "vert") d.minSize = d.minWidth;
  		return d;
  	}
  
  	// TODO: see if these methods can be made more useful...
  	// TODO: *maybe* return cssW/H from these so caller can use this info
  
  	/**
  	* @param {(string|!Object)}		el
  	* @param {number=}				outerWidth
  	* @param {boolean=}				autoHide
  	*/
  ,	setOuterWidth = function (el, outerWidth, autoHide) {
  		var $E = el, w;
  		if (isStr(el)) $E = $Ps[el]; // west
  		else if (!el.jquery) $E = $(el);
  		w = cssW($E, outerWidth);
  		$E.css({ width: w });
  		if (w > 0) {
  			if (autoHide && $E.data('autoHidden') && $E.innerHeight() > 0) {
  				$E.show().data('autoHidden', false);
  				if (!$.layout.browser.mozilla) // FireFox refreshes iframes - IE does not
  					// make hidden, then visible to 'refresh' display after animation
  					$E.css(_c.hidden).css(_c.visible);
  			}
  		}
  		else if (autoHide && !$E.data('autoHidden'))
  			$E.hide().data('autoHidden', true);
  	}
  
  	/**
  	* @param {(string|!Object)}		el
  	* @param {number=}				outerHeight
  	* @param {boolean=}				autoHide
  	*/
  ,	setOuterHeight = function (el, outerHeight, autoHide) {
  		var $E = el, h;
  		if (isStr(el)) $E = $Ps[el]; // west
  		else if (!el.jquery) $E = $(el);
  		h = cssH($E, outerHeight);
  		$E.css({ height: h, visibility: "visible" }); // may have been 'hidden' by sizeContent
  		if (h > 0 && $E.innerWidth() > 0) {
  			if (autoHide && $E.data('autoHidden')) {
  				$E.show().data('autoHidden', false);
  				if (!$.layout.browser.mozilla) // FireFox refreshes iframes - IE does not
  					$E.css(_c.hidden).css(_c.visible);
  			}
  		}
  		else if (autoHide && !$E.data('autoHidden'))
  			$E.hide().data('autoHidden', true);
  	}
  
  	/**
  	* @param {(string|!Object)}		el
  	* @param {number=}				outerSize
  	* @param {boolean=}				autoHide
  	*/
  ,	setOuterSize = function (el, outerSize, autoHide) {
  		if (_c[pane].dir=="horz") // pane = north or south
  			setOuterHeight(el, outerSize, autoHide);
  		else // pane = east or west
  			setOuterWidth(el, outerSize, autoHide);
  	}
  
  
  	/**
  	* Converts any 'size' params to a pixel/integer size, if not already
  	* If 'auto' or a decimal/percentage is passed as 'size', a pixel-size is calculated
  	*
  	/**
  	* @param  {string}				pane
  	* @param  {(string|number)=}	size
  	* @param  {string=}				dir
  	* @return {number}
  	*/
  ,	_parseSize = function (pane, size, dir) {
  		if (!dir) dir = _c[pane].dir;
  
  		if (isStr(size) && size.match(/%/))
  			size = parseInt(size, 10) / 100; // convert % to decimal
  
  		if (size === 0)
  			return 0;
  		else if (size >= 1)
  			return parseInt(size, 10);
  		else if (size > 0) { // percentage, eg: .25
  			var o = options, avail;
  			if (dir=="horz") // north or south or center.minHeight
  				avail = sC.innerHeight - ($Ps.north ? o.north.spacing_open : 0) - ($Ps.south ? o.south.spacing_open : 0);
  			else if (dir=="vert") // east or west or center.minWidth
  				avail = sC.innerWidth - ($Ps.west ? o.west.spacing_open : 0) - ($Ps.east ? o.east.spacing_open : 0);
  			return Math.floor(avail * size);
  		}
  		else if (pane=="center")
  			return 0;
  		else { // size < 0 || size=='auto' || size==Missing || size==Invalid
  			// auto-size the pane
  			var
  				$P	= $Ps[pane]
  			,	dim	= (dir == "horz" ? "height" : "width")
  			,	vis	= $.layout.showInvisibly($P) // show pane invisibly if hidden
  			,	s	= $P.css(dim); // SAVE current size
  			;
  			$P.css(dim, "auto");
  			size = (dim == "height") ? $P.outerHeight() : $P.outerWidth(); // MEASURE
  			$P.css(dim, s).css(vis); // RESET size & visibility
  			return size;
  		}
  	}
  
  	/**
  	* Calculates current 'size' (outer-width or outer-height) of a border-pane - optionally with 'pane-spacing' added
  	*
  	* @param  {(string|!Object)}	pane
  	* @param  {boolean=}			inclSpace
  	* @return {number}				Returns EITHER Width for east/west panes OR Height for north/south panes - adjusted for boxModel & browser
  	*/
  ,	getPaneSize = function (pane, inclSpace) {
  		var 
  			$P	= $Ps[pane]
  		,	o	= options[pane]
  		,	s	= state[pane]
  		,	oSp	= (inclSpace ? o.spacing_open : 0)
  		,	cSp	= (inclSpace ? o.spacing_closed : 0)
  		;
  		if (!$P || s.isHidden)
  			return 0;
  		else if (s.isClosed || (s.isSliding && inclSpace))
  			return cSp;
  		else if (_c[pane].dir == "horz")
  			return $P.outerHeight() + oSp;
  		else // dir == "vert"
  			return $P.outerWidth() + oSp;
  	}
  
  	/**
  	* Calculate min/max pane dimensions and limits for resizing
  	*
  	* @param  {string}		pane
  	* @param  {boolean=}	slide
  	*/
  ,	setSizeLimits = function (pane, slide) {
  		if (!isInitialized()) return;
  		var 
  			o				= options[pane]
  		,	s				= state[pane]
  		,	c				= _c[pane]
  		,	dir				= c.dir
  		,	side			= c.side.toLowerCase()
  		,	type			= c.sizeType.toLowerCase()
  		,	isSliding		= (slide != undefined ? slide : s.isSliding) // only open() passes 'slide' param
  		,	$P				= $Ps[pane]
  		,	paneSpacing		= o.spacing_open
  		//	measure the pane on the *opposite side* from this pane
  		,	altPane			= _c.altSide[pane]
  		,	altS			= state[altPane]
  		,	$altP			= $Ps[altPane]
  		,	altPaneSize		= (!$altP || altS.isVisible===false || altS.isSliding ? 0 : (dir=="horz" ? $altP.outerHeight() : $altP.outerWidth()))
  		,	altPaneSpacing	= ((!$altP || altS.isHidden ? 0 : options[altPane][ altS.isClosed !== false ? "spacing_closed" : "spacing_open" ]) || 0)
  		//	limitSize prevents this pane from 'overlapping' opposite pane
  		,	containerSize	= (dir=="horz" ? sC.innerHeight : sC.innerWidth)
  		,	minCenterDims	= cssMinDims("center")
  		,	minCenterSize	= dir=="horz" ? max(options.center.minHeight, minCenterDims.minHeight) : max(options.center.minWidth, minCenterDims.minWidth)
  		//	if pane is 'sliding', then ignore center and alt-pane sizes - because 'overlays' them
  		,	limitSize		= (containerSize - paneSpacing - (isSliding ? 0 : (_parseSize("center", minCenterSize, dir) + altPaneSize + altPaneSpacing)))
  		,	minSize			= s.minSize = max( _parseSize(pane, o.minSize), cssMinDims(pane).minSize )
  		,	maxSize			= s.maxSize = min( (o.maxSize ? _parseSize(pane, o.maxSize) : 100000), limitSize )
  		,	r				= s.resizerPosition = {} // used to set resizing limits
  		,	top				= sC.insetTop
  		,	left			= sC.insetLeft
  		,	W				= sC.innerWidth
  		,	H				= sC.innerHeight
  		,	rW				= o.spacing_open // subtract resizer-width to get top/left position for south/east
  		;
  		switch (pane) {
  			case "north":	r.min = top + minSize;
  							r.max = top + maxSize;
  							break;
  			case "west":	r.min = left + minSize;
  							r.max = left + maxSize;
  							break;
  			case "south":	r.min = top + H - maxSize - rW;
  							r.max = top + H - minSize - rW;
  							break;
  			case "east":	r.min = left + W - maxSize - rW;
  							r.max = left + W - minSize - rW;
  							break;
  		};
  	}
  
  	/**
  	* Returns data for setting the size/position of center pane. Also used to set Height for east/west panes
  	*
  	* @return JSON  Returns a hash of all dimensions: top, bottom, left, right, (outer) width and (outer) height
  	*/
  ,	calcNewCenterPaneDims = function () {
  		var d = {
  			top:	getPaneSize("north", true) // true = include 'spacing' value for pane
  		,	bottom:	getPaneSize("south", true)
  		,	left:	getPaneSize("west", true)
  		,	right:	getPaneSize("east", true)
  		,	width:	0
  		,	height:	0
  		};
  
  		// NOTE: sC = state.container
  		// calc center-pane outer dimensions
  		d.width		= sC.innerWidth - d.left - d.right;  // outerWidth
  		d.height	= sC.innerHeight - d.bottom - d.top; // outerHeight
  		// add the 'container border/padding' to get final positions relative to the container
  		d.top		+= sC.insetTop;
  		d.bottom	+= sC.insetBottom;
  		d.left		+= sC.insetLeft;
  		d.right		+= sC.insetRight;
  
  		return d;
  	}
  
  
  	/**
  	* Returns data for setting size of an element (container or a pane).
  	*
  	* @see  _create(), onWindowResize() for container, plus others for pane
  	* @return JSON  Returns a hash of all dimensions: top, bottom, left, right, outerWidth, innerHeight, etc
  	*/
  ,	elDims = function ($E) { return $.layout.getElementDimensions($E); }
  
  ,	elCSS = function ($E, list) { return $.layout.getElementCSS($E, list); }
  
  
  	/**
  	* @param {!Object}		el
  	* @param {boolean=}		allStates
  	*/
  ,	getHoverClasses = function (el, allStates) {
  		var
  			$El		= $(el)
  		,	type	= $El.data("layoutRole")
  		,	pane	= $El.data("layoutEdge")
  		,	o		= options[pane]
  		,	root	= o[type +"Class"]
  		,	_pane	= "-"+ pane // eg: "-west"
  		,	_open	= "-open"
  		,	_closed	= "-closed"
  		,	_slide	= "-sliding"
  		,	_hover	= "-hover " // NOTE the trailing space
  		,	_state	= $El.hasClass(root+_closed) ? _closed : _open
  		,	_alt	= _state == _closed ? _open : _closed
  		,	classes = (root+_hover) + (root+_pane+_hover) + (root+_state+_hover) + (root+_pane+_state+_hover)
  		;
  		if (allStates) // when 'removing' classes, also remove alternate-state classes
  			classes += (root+_alt+_hover) + (root+_pane+_alt+_hover);
  
  		if (type=="resizer" && $El.hasClass(root+_slide))
  			classes += (root+_slide+_hover) + (root+_pane+_slide+_hover);
  
  		return $.trim(classes);
  	}
  ,	addHover	= function (evt, el) {
  		var $E = $(el || this);
  		if (evt && $E.data("layoutRole") == "toggler")
  			evt.stopPropagation(); // prevent triggering 'slide' on Resizer-bar
  		$E.addClass( getHoverClasses($E) );
  	}
  ,	removeHover	= function (evt, el) {
  		var $E = $(el || this);
  		$E.removeClass( getHoverClasses($E, true) );
  	}
  
  ,	onResizerEnter	= function (evt) {
  		$('body').disableSelection();
  		addHover(evt, this);
  	}
  ,	onResizerLeave	= function (evt, el) {
  		var
  			e = el || this // el is only passed when called by the timer
  		,	pane = $(e).data("layoutEdge")
  		,	name = pane +"ResizerLeave"
  		;
  		timer.clear(pane+"_openSlider"); // cancel slideOpen timer, if set
  		timer.clear(name); // cancel enableSelection timer - may re/set below
  		if (!el) { // 1st call - mouseleave event
  			removeHover(evt, this); // do this on initial call
  			// this method calls itself on a timer because it needs to allow
  			// enough time for dragging to kick-in and set the isResizing flag
  			// dragging has a 100ms delay set, so this delay must be higher
  			timer.set(name, function(){ onResizerLeave(evt, e); }, 200);
  		}
  		// if user is resizing, then dragStop will enableSelection() when done
  		else if (!state[pane].isResizing) // 2nd call - by timer
  			$('body').enableSelection();
  	}
  
  /*
   * ###########################
   *   INITIALIZATION METHODS
   * ###########################
   */
  
  	/**
  	* Initialize the layout - called automatically whenever an instance of layout is created
  	*
  	* @see  none - triggered onInit
  	* @return  mixed	true = fully initialized | false = panes not initialized (yet) | 'cancel' = abort
  	*/
  ,	_create = function () {
  		// initialize config/options
  		initOptions();
  		var o = options;
  
  		$.layout.browser.boxModel = $.support.boxModel;
  
  		// update options with saved state, if option enabled
  		if (o.useStateCookie && o.cookie.autoLoad)
  			loadCookie(); // Update options from state-cookie
  
  		// TEMP state so isInitialized returns true during init process
  		state.creatingLayout = true;
  
  		// options & state have been initialized, so now run beforeLoad callback
  		// onload will CANCEL layout creation if it returns false
  		if (false === _execCallback(null, o.onload_start))
  			return 'cancel';
  
  		// initialize the container element
  		_initContainer();
  
  		// bind hotkey function - keyDown - if required
  		initHotkeys();
  
  		// search for and bind custom-buttons
  		if (o.autoBindCustomButtons) initButtons();
  
  		// bind window.onunload
  		$(window).bind("unload."+ sID, unload);
  
  		// if layout elements are hidden, then layout WILL NOT complete initialization!
  		// initLayoutElements will set initialized=true and run the onload callback IF successful
  		if (o.initPanes) _initLayoutElements();
  
  		delete state.creatingLayout;
  
  		return state.initialized;
  	}
  
  	/**
  	* Initialize the layout IF not already
  	*
  	* @see  All methods in Instance run this test
  	* @return  boolean	true = layoutElements have been initialized | false = panes are not initialized (yet)
  	*/
  ,	isInitialized = function () {
  		if (state.initialized || state.creatingLayout) return true;	// already initialized
  		else return _initLayoutElements();	// try to init panes NOW
  	}
  
  	/**
  	* Initialize the layout - called automatically whenever an instance of layout is created
  	*
  	* @see  _create() & isInitialized
  	* @return  An object pointer to the instance created
  	*/
  ,	_initLayoutElements = function () {
  		// initialize config/options
  		var o = options;
  
  		// CANNOT init panes inside a hidden container!
  		if (!$N.is(":visible"))
  			return false;
  		// a center pane is required, so make sure it exists
  		if (!getPane('center').length) {
  			if (o.showErrorMessages) alert( lang.errCenterPaneMissing );
  			return false;
  		}
  
  		// TEMP state so isInitialized returns true during init process
  		state.creatingLayout = true;
  
  		// update Container dims
  		$.extend(sC, elDims( $N ));
  
   		// initialize all layout elements
  		initPanes();	// size & position panes - calls initHandles() - which calls initResizable()
  		sizeContent();	// AFTER panes & handles have been initialized, size 'content' divs
  
  		if (o.scrollToBookmarkOnLoad) {
  			var l = self.location;
  			if (l.hash) l.replace( l.hash ); // scrollTo Bookmark
  		}
  
  		// bind resizeAll() for 'this layout instance' to window.resize event
  		if (o.resizeWithWindow && !$N.data("layoutRole")) // skip if 'nested' inside a pane
  			$(window).bind("resize."+ sID, windowResize);
  
  		delete state.creatingLayout;
  		state.initialized = true;
  
  		_execCallback(null, o.onload_end || o.onload);
  
  		return true; // elements initialized successfully
  	}
  
  
  ,	windowResize = function () {
  		var delay = Number(options.resizeWithWindowDelay);
  		if (delay < 10) delay = 100; // MUST have a delay!
  		// resizing uses a delay-loop because the resize event fires repeatly - except in FF, but delay anyway
  		timer.clear("winResize"); // if already running
  		timer.set("winResize", function(){
  			timer.clear("winResize");
  			timer.clear("winResizeRepeater");
  			var dims = elDims( $N );
  			// only trigger resizeAll() if container has changed size
  			if (dims.innerWidth !== sC.innerWidth || dims.innerHeight !== sC.innerHeight)
  				resizeAll();
  		}, delay);
  		// ALSO set fixed-delay timer, if not already running
  		if (!timer.data["winResizeRepeater"]) setWindowResizeRepeater();
  	}
  
  ,	setWindowResizeRepeater = function () {
  		var delay = Number(options.resizeWithWindowMaxDelay);
  		if (delay > 0)
  			timer.set("winResizeRepeater", function(){ setWindowResizeRepeater(); resizeAll(); }, delay);
  	}
  
  ,	unload = function () {
  		var o = options;
  		state.cookie = getState(); // save state in case onunload has custom state-management
  		_execCallback(null, o.onunload_start);
  		if (o.useStateCookie && o.cookie.autoSave) saveCookie();
  		_execCallback(null, o.onunload_end || o.onunload);
  	}
  
  	/**
  	* Validate and initialize container CSS and events
  	*
  	* @see  _create()
  	*/
  ,	_initContainer = function () {
  		var
  			tag		= sC.tagName = $N[0].tagName
  		,	o		= options
  		,	fullPage= (tag == "BODY")
  		,	props	= "overflow,position,margin,padding,border"
  		,	CSS		= {}
  		,	hid		= "hidden" // used A LOT!
  		,	isVis	= $N.is(":visible")
  		;
  		// sC -> state.container
  		sC.selector = $N.selector.split(".slice")[0];
  		sC.ref		= tag +"/"+ sC.selector; // used in messages
  
  		$N	.data("layout", Instance)
  			.data("layoutContainer", sID)	// unique identifier for internal use
  			.addClass(o.containerClass)
  		;
  
  		// SAVE original container CSS for use in destroy()
  		if (!$N.data("layoutCSS")) {
  			// handle props like overflow different for BODY & HTML - has 'system default' values
  			if (fullPage) {
  				CSS = $.extend( elCSS($N, props), {
  					height:		$N.css("height")
  				,	overflow:	$N.css("overflow")
  				,	overflowX:	$N.css("overflowX")
  				,	overflowY:	$N.css("overflowY")
  				});
  				// ALSO SAVE <HTML> CSS
  				var $H = $("html");
  				$H.data("layoutCSS", {
  					height:		"auto" // FF would return a fixed px-size!
  				,	overflow:	$H.css("overflow")
  				,	overflowX:	$H.css("overflowX")
  				,	overflowY:	$H.css("overflowY")
  				});
  			}
  			else // handle props normally for non-body elements
  				CSS = elCSS($N, props+",top,bottom,left,right,width,height,overflow,overflowX,overflowY");
  
  			$N.data("layoutCSS", CSS);
  		}
  
  		try { // format html/body if this is a full page layout
  			if (fullPage) {
  				$("html").css({
  					height:		"100%"
  				,	overflow:	hid
  				,	overflowX:	hid
  				,	overflowY:	hid
  				});
  				$("body").css({
  					position:	"relative"
  				,	height:		"100%"
  				,	overflow:	hid
  				,	overflowX:	hid
  				,	overflowY:	hid
  				,	margin:		0
  				,	padding:	0		// TODO: test whether body-padding could be handled?
  				,	border:		"none"	// a body-border creates problems because it cannot be measured!
  				});
  
  				// set current layout-container dimensions
  				$.extend(sC, elDims( $N ));
  			}
  			else { // set required CSS for overflow and position
  				// ENSURE container will not 'scroll'
  				CSS = { overflow: hid, overflowX: hid, overflowY: hid }
  				var
  					p = $N.css("position")
  				,	h = $N.css("height")
  				;
  				// if this is a NESTED layout, then container/outer-pane ALREADY has position and height
  				if (!$N.data("layoutRole")) {
  					if (!p || !p.match(/fixed|absolute|relative/))
  						CSS.position = "relative"; // container MUST have a 'position'
  					/*
  					if (!h || h=="auto")
  						CSS.height = "100%"; // container MUST have a 'height'
  					*/
  				}
  				$N.css( CSS );
  
  				// set current layout-container dimensions
  				if (isVis) {
  					$.extend(sC, elDims( $N ));
  					if (o.showErrorMessages && sC.innerHeight < 2)
  						alert( lang.errContainerHeight.replace(/CONTAINER/, sC.ref) );
  				}
  			}
  		} catch (ex) {}
  	}
  
  	/**
  	* Bind layout hotkeys - if options enabled
  	*
  	* @see  _create() and addPane()
  	* @param {string=}	panes		The edge(s) to process, blank = all
  	*/
  ,	initHotkeys = function (panes) {
  		if (!panes || panes == "all") panes = _c.borderPanes;
  		// bind keyDown to capture hotkeys, if option enabled for ANY pane
  		$.each(panes.split(","), function (i, pane) {
  			var o = options[pane];
  			if (o.enableCursorHotkey || o.customHotkey) {
  				$(document).bind("keydown."+ sID, keyDown); // only need to bind this ONCE
  				return false; // BREAK - binding was done
  			}
  		});
  	}
  
  	/**
  	* Build final OPTIONS data
  	*
  	* @see  _create()
  	*/
  ,	initOptions = function () {
  		// simplify logic by making sure passed 'opts' var has basic keys
  		opts = _transformData( opts );
  
  		// TODO: create a compatibility add-on for new UI widget that will transform old option syntax
  		var newOpts = {
  			applyDefaultStyles:		"applyDemoStyles"
  		};
  		renameOpts(opts.defaults);
  		$.each(_c.allPanes.split(","), function (i, pane) {
  			renameOpts(opts[pane]);
  		});
  
  		// update default effects, if case user passed key
  		if (opts.effects) {
  			$.extend( effects, opts.effects );
  			delete opts.effects;
  		}
  		$.extend( options.cookie, opts.cookie );
  
  		// see if any 'global options' were specified
  		var globals = "name,containerClass,zIndex,scrollToBookmarkOnLoad,resizeWithWindow,resizeWithWindowDelay,resizeWithWindowMaxDelay,"+
  			"onresizeall,onresizeall_start,onresizeall_end,onload,onload_start,onload_end,onunload,onunload_start,onunload_end,autoBindCustomButtons,useStateCookie";
  		$.each(globals.split(","), function (i, key) {
  			if (opts[key] !== undefined)
  				options[key] = opts[key];
  			else if (opts.defaults[key] !== undefined) {
  				options[key] = opts.defaults[key];
  				delete opts.defaults[key];
  			}
  		});
  
  		// remove any 'defaults' that MUST be set 'per-pane'
  		$.each("paneSelector,resizerCursor,customHotkey".split(","),
  			function (i, key) { delete opts.defaults[key]; } // is OK if key does not exist
  		);
  
  		// now update options.defaults
  		$.extend( true, options.defaults, opts.defaults );
  
  		// merge config for 'center-pane' - border-panes handled in the loop below
  		_c.center = $.extend( true, {}, _c.panes, _c.center );
  		// update config.zIndex values if zIndex option specified
  		var z = options.zIndex;
  		if (z === 0 || z > 0) {
  			_c.zIndex.pane_normal		= z;
  			_c.zIndex.resizer_normal	= z+1;
  			_c.zIndex.iframe_mask		= z+1;
  		}
  
  		// merge options for 'center-pane' - border-panes handled in the loop below
  		$.extend( options.center, opts.center );
  		// Most 'default options' do not apply to 'center', so add only those that DO
  		var o_Center = $.extend( true, {}, options.defaults, opts.defaults, options.center ); // TEMP data
  		var optionsCenter = ("paneClass,contentSelector,applyDemoStyles,triggerEventsOnLoad,showOverflowOnHover,"
  		+	"onresize,onresize_start,onresize_end,resizeNestedLayout,resizeContentWhileDragging,findNestedContent,"
  		+	"onsizecontent,onsizecontent_start,onsizecontent_end").split(",");
  		$.each(optionsCenter,
  			function (i, key) { options.center[key] = o_Center[key]; }
  		);
  
  		var o, defs = options.defaults;
  
  		// create a COMPLETE set of options for EACH border-pane
  		$.each(_c.borderPanes.split(","), function (i, pane) {
  
  			// apply 'pane-defaults' to CONFIG.[PANE]
  			_c[pane] = $.extend( true, {}, _c.panes, _c[pane] );
  
  			// apply 'pane-defaults' +  user-options to OPTIONS.PANE
  			o = options[pane] = $.extend( true, {}, options.defaults, options[pane], opts.defaults, opts[pane] );
  
  			// make sure we have base-classes
  			if (!o.paneClass)		o.paneClass		= "ui-layout-pane";
  			if (!o.resizerClass)	o.resizerClass	= "ui-layout-resizer";
  			if (!o.togglerClass)	o.togglerClass	= "ui-layout-toggler";
  
  			// create FINAL fx options for each pane, ie: options.PANE.fxName/fxSpeed/fxSettings[_open|_close]
  			$.each(["_open","_close",""], function (i,n) { 
  				var
  					sName		= "fxName"+n
  				,	sSpeed		= "fxSpeed"+n
  				,	sSettings	= "fxSettings"+n
  				;
  				// recalculate fxName according to specificity rules
  				o[sName] =
  					opts[pane][sName]		// opts.west.fxName_open
  				||	opts[pane].fxName		// opts.west.fxName
  				||	opts.defaults[sName]	// opts.defaults.fxName_open
  				||	opts.defaults.fxName	// opts.defaults.fxName
  				||	o[sName]				// options.west.fxName_open
  				||	o.fxName				// options.west.fxName
  				||	defs[sName]				// options.defaults.fxName_open
  				||	defs.fxName				// options.defaults.fxName
  				||	"none"
  				;
  				// validate fxName to be sure is a valid effect
  				var fxName = o[sName];
  				if (fxName == "none" || !$.effects || !$.effects[fxName] || (!effects[fxName] && !o[sSettings] && !o.fxSettings))
  					fxName = o[sName] = "none"; // effect not loaded, OR undefined FX AND fxSettings not passed
  				// set vars for effects subkeys to simplify logic
  				var
  					fx = effects[fxName]	|| {} // effects.slide
  				,	fx_all	= fx.all		|| {} // effects.slide.all
  				,	fx_pane	= fx[pane]		|| {} // effects.slide.west
  				;
  				// RECREATE the fxSettings[_open|_close] keys using specificity rules
  				o[sSettings] = $.extend(
  					{}
  				,	fx_all						// effects.slide.all
  				,	fx_pane						// effects.slide.west
  				,	defs.fxSettings || {}		// options.defaults.fxSettings
  				,	defs[sSettings] || {}		// options.defaults.fxSettings_open
  				,	o.fxSettings				// options.west.fxSettings
  				,	o[sSettings]				// options.west.fxSettings_open
  				,	opts.defaults.fxSettings	// opts.defaults.fxSettings
  				,	opts.defaults[sSettings] || {} // opts.defaults.fxSettings_open
  				,	opts[pane].fxSettings		// opts.west.fxSettings
  				,	opts[pane][sSettings] || {}	// opts.west.fxSettings_open
  				);
  				// recalculate fxSpeed according to specificity rules
  				o[sSpeed] =
  					opts[pane][sSpeed]		// opts.west.fxSpeed_open
  				||	opts[pane].fxSpeed		// opts.west.fxSpeed (pane-default)
  				||	opts.defaults[sSpeed]	// opts.defaults.fxSpeed_open
  				||	opts.defaults.fxSpeed	// opts.defaults.fxSpeed
  				||	o[sSpeed]				// options.west.fxSpeed_open
  				||	o[sSettings].duration	// options.west.fxSettings_open.duration
  				||	o.fxSpeed				// options.west.fxSpeed
  				||	o.fxSettings.duration	// options.west.fxSettings.duration
  				||	defs.fxSpeed			// options.defaults.fxSpeed
  				||	defs.fxSettings.duration// options.defaults.fxSettings.duration
  				||	fx_pane.duration		// effects.slide.west.duration
  				||	fx_all.duration			// effects.slide.all.duration
  				||	"normal"				// DEFAULT
  				;
  			});
  
  		});
  
  		function renameOpts (O) {
  			for (var key in newOpts) {
  				if (O[key] != undefined) {
  					O[newOpts[key]] = O[key];
  					delete O[key];
  				}
  			}
  		}
  	}
  
  	/**
  	* Initialize module objects, styling, size and position for all panes
  	*
  	* @see  _create()
  	* @param {string}	pane		The pane to process
  	*/
  ,	getPane = function (pane) {
  		var sel = options[pane].paneSelector
  		if (sel.substr(0,1)==="#") // ID selector
  			// NOTE: elements selected 'by ID' DO NOT have to be 'children'
  			return $N.find(sel).eq(0);
  		else { // class or other selector
  			var $P = $N.children(sel).eq(0);
  			// look for the pane nested inside a 'form' element
  			return $P.length ? $P : $N.children("form:first").children(sel).eq(0);
  		}
  	}
  ,	initPanes = function () {
  		// NOTE: do north & south FIRST so we can measure their height - do center LAST
  		$.each(_c.allPanes.split(","), function (idx, pane) {
  			addPane( pane, true );
  		});
  
  		// init the pane-handles NOW in case we have to hide or close the pane below
  		initHandles();
  
  		// now that all panes have been initialized and initially-sized,
  		// make sure there is really enough space available for each pane
  		$.each(_c.borderPanes.split(","), function (i, pane) {
  			if ($Ps[pane] && state[pane].isVisible) { // pane is OPEN
  				setSizeLimits(pane);
  				makePaneFit(pane); // pane may be Closed, Hidden or Resized by makePaneFit()
  			}
  		});
  		// size center-pane AGAIN in case we 'closed' a border-pane in loop above
  		sizeMidPanes("center");
  
  		// Chrome fires callback BEFORE it completes resizing, so add a delay before handling children
  		setTimeout(function(){
  			$.each(_c.allPanes.split(","), function (i, pane) {
  				var o = options[pane];
  				if ($Ps[pane] && state[pane].isVisible) { // pane is OPEN
  					// trigger onResize callbacks for all panes with triggerEventsOnLoad = true
  					if (o.triggerEventsOnLoad)
  						_execCallback(pane, o.onresize_end || o.onresize);
  					resizeNestedLayout(pane);
  				}
  			});
  		}, 50 ); // 50ms delay is enough
  
  		if (options.showErrorMessages && $N.innerHeight() < 2)
  			alert( lang.errContainerHeight.replace(/CONTAINER/, sC.ref) );
  	}
  
  	/**
  	* Remove a pane from the layout - subroutine of destroy()
  	*
  	* @see  initPanes()
  	* @param {string}	pane		The pane to process
  	*/
  ,	addPane = function (pane, force) {
  		if (!force && !isInitialized()) return;
  		var
  			o		= options[pane]
  		,	s		= state[pane]
  		,	c		= _c[pane]
  		,	fx		= s.fx
  		,	dir		= c.dir
  		,	spacing	= o.spacing_open || 0
  		,	isCenter = (pane == "center")
  		,	CSS		= {}
  		,	$P		= $Ps[pane]
  		,	size, minSize, maxSize
  		;
  
  		// if pane-pointer already exists, remove the old one first
  		if ($P)
  			removePane( pane );
  		else
  			$Cs[pane] = false; // init
  
  		$P = $Ps[pane] = getPane(pane);
  		if (!$P.length) {
  			$Ps[pane] = false; // logic
  			return;
  		}
  
  		// SAVE original Pane CSS
  		if (!$P.data("layoutCSS")) {
  			var props = "position,top,left,bottom,right,width,height,overflow,zIndex,display,backgroundColor,padding,margin,border";
  			$P.data("layoutCSS", elCSS($P, props));
  		}
  
  		// add basic classes & attributes
  		$P
  			.data("parentLayout", Instance)
  			.data("layoutRole", "pane")
  			.data("layoutEdge", pane)
  			.css(c.cssReq).css("zIndex", _c.zIndex.pane_normal)
  			.css(o.applyDemoStyles ? c.cssDemo : {}) // demo styles
  			.addClass( o.paneClass +" "+ o.paneClass+"-"+pane ) // default = "ui-layout-pane ui-layout-pane-west" - may be a dupe of 'paneSelector'
  			.bind("mouseenter."+ sID, addHover )
  			.bind("mouseleave."+ sID, removeHover )
  		;
  
  		// see if this pane has a 'scrolling-content element'
  		initContent(pane, false); // false = do NOT sizeContent() - called later
  
  		if (!isCenter) {
  			// call _parseSize AFTER applying pane classes & styles - but before making visible (if hidden)
  			// if o.size is auto or not valid, then MEASURE the pane and use that as its 'size'
  			size	= s.size = _parseSize(pane, o.size);
  			minSize	= _parseSize(pane,o.minSize) || 1;
  			maxSize	= _parseSize(pane,o.maxSize) || 100000;
  			if (size > 0) size = max(min(size, maxSize), minSize);
  
  			// state for border-panes
  			s.isClosed  = false; // true = pane is closed
  			s.isSliding = false; // true = pane is currently open by 'sliding' over adjacent panes
  			s.isResizing= false; // true = pane is in process of being resized
  			s.isHidden	= false; // true = pane is hidden - no spacing, resizer or toggler is visible!
  		}
  		//	state common to ALL panes
  			s.tagName	= $P[0].tagName;
  			s.edge		= pane   // useful if pane is (or about to be) 'swapped' - easy find out where it is (or is going)
  			s.noRoom	= false; // true = pane 'automatically' hidden due to insufficient room - will unhide automatically
  			s.isVisible	= true;  // false = pane is invisible - closed OR hidden - simplify logic
  
  		// set css-position to account for container borders & padding
  		switch (pane) {
  			case "north": 	CSS.top 	= sC.insetTop;
  							CSS.left 	= sC.insetLeft;
  							CSS.right	= sC.insetRight;
  							break;
  			case "south": 	CSS.bottom	= sC.insetBottom;
  							CSS.left 	= sC.insetLeft;
  							CSS.right 	= sC.insetRight;
  							break;
  			case "west": 	CSS.left 	= sC.insetLeft; // top, bottom & height set by sizeMidPanes()
  							break;
  			case "east": 	CSS.right 	= sC.insetRight; // ditto
  							break;
  			case "center":	// top, left, width & height set by sizeMidPanes()
  		}
  
  		if (dir == "horz") // north or south pane
  			CSS.height = max(1, cssH(pane, size));
  		else if (dir == "vert") // east or west pane
  			CSS.width = max(1, cssW(pane, size));
  		//else if (isCenter) {}
  
  		$P.css(CSS); // apply size -- top, bottom & height will be set by sizeMidPanes
  		if (dir != "horz") sizeMidPanes(pane, true); // true = skipCallback
  
  		// close or hide the pane if specified in settings
  		if (o.initClosed && o.closable && !o.initHidden)
  			close(pane, true, true); // true, true = force, noAnimation
  		else if (o.initHidden || o.initClosed)
  			hide(pane); // will be completely invisible - no resizer or spacing
  		else if (!s.noRoom)
  			// make the pane visible - in case was initially hidden
  			$P.css("display","block");
  		// ELSE setAsOpen() - called later by initHandles()
  
  		// RESET visibility now - pane will appear IF display:block
  		$P.css("visibility","visible");
  
  		// check option for auto-handling of pop-ups & drop-downs
  		if (o.showOverflowOnHover)
  			$P.hover( allowOverflow, resetOverflow );
  
  		// if adding a pane AFTER initialization, then...
  		if (state.initialized) {
  			initHandles( pane );
  			initHotkeys( pane );
  			resizeAll(); // will sizeContent if pane is visible
  			if (s.isVisible) { // pane is OPEN
  				if (o.triggerEventsOnLoad)
  					_execCallback(pane, o.onresize_end || o.onresize); 
  				resizeNestedLayout(pane);
  			}
  		}
  	}
  
  	/**
  	* Initialize module objects, styling, size and position for all resize bars and toggler buttons
  	*
  	* @see  _create()
  	* @param {string=}	panes		The edge(s) to process, blank = all
  	*/
  ,	initHandles = function (panes) {
  		if (!panes || panes == "all") panes = _c.borderPanes;
  
  		// create toggler DIVs for each pane, and set object pointers for them, eg: $R.north = north toggler DIV
  		$.each(panes.split(","), function (i, pane) {
  			var $P		= $Ps[pane];
  			$Rs[pane]	= false; // INIT
  			$Ts[pane]	= false;
  			if (!$P) return; // pane does not exist - skip
  
  			var 
  				o		= options[pane]
  			,	s		= state[pane]
  			,	c		= _c[pane]
  			,	rClass	= o.resizerClass
  			,	tClass	= o.togglerClass
  			,	side	= c.side.toLowerCase()
  			,	spacing	= (s.isVisible ? o.spacing_open : o.spacing_closed)
  			,	_pane	= "-"+ pane // used for classNames
  			,	_state	= (s.isVisible ? "-open" : "-closed") // used for classNames
  				// INIT RESIZER BAR
  			,	$R		= $Rs[pane] = $("<div></div>")
  				// INIT TOGGLER BUTTON
  			,	$T		= (o.closable ? $Ts[pane] = $("<div></div>") : false)
  			;
  
  			//if (s.isVisible && o.resizable) ... handled by initResizable
  			if (!s.isVisible && o.slidable)
  				$R.attr("title", o.sliderTip).css("cursor", o.sliderCursor);
  
  			$R
  				// if paneSelector is an ID, then create a matching ID for the resizer, eg: "#paneLeft" => "paneLeft-resizer"
  				.attr("id", (o.paneSelector.substr(0,1)=="#" ? o.paneSelector.substr(1) + "-resizer" : ""))
  				.data("parentLayout", Instance)
  				.data("layoutRole", "resizer")
  				.data("layoutEdge", pane)
  				.css(_c.resizers.cssReq).css("zIndex", _c.zIndex.resizer_normal)
  				.css(o.applyDemoStyles ? _c.resizers.cssDemo : {}) // add demo styles
  				.addClass(rClass +" "+ rClass+_pane)
  				.appendTo($N) // append DIV to container
  			;
  
  			if ($T) {
  				$T
  					// if paneSelector is an ID, then create a matching ID for the resizer, eg: "#paneLeft" => "#paneLeft-toggler"
  					.attr("id", (o.paneSelector.substr(0,1)=="#" ? o.paneSelector.substr(1) + "-toggler" : ""))
  					.data("parentLayout", Instance)
  					.data("layoutRole", "toggler")
  					.data("layoutEdge", pane)
  					.css(_c.togglers.cssReq) // add base/required styles
  					.css(o.applyDemoStyles ? _c.togglers.cssDemo : {}) // add demo styles
  					.addClass(tClass +" "+ tClass+_pane)
  					.appendTo($R) // append SPAN to resizer DIV
  				;
  				// ADD INNER-SPANS TO TOGGLER
  				if (o.togglerContent_open) // ui-layout-open
  					$("<span>"+ o.togglerContent_open +"</span>")
  						.data("layoutRole", "togglerContent")
  						.data("layoutEdge", pane)
  						.addClass("content content-open")
  						.css("display","none")
  						.appendTo( $T )
  						//.hover( addHover, removeHover ) // use ui-layout-toggler-west-hover .content-open instead!
  					;
  				if (o.togglerContent_closed) // ui-layout-closed
  					$("<span>"+ o.togglerContent_closed +"</span>")
  						.data("layoutRole", "togglerContent")
  						.data("layoutEdge", pane)
  						.addClass("content content-closed")
  						.css("display","none")
  						.appendTo( $T )
  						//.hover( addHover, removeHover ) // use ui-layout-toggler-west-hover .content-closed instead!
  					;
  				// ADD TOGGLER.click/.hover
  				enableClosable(pane);
  			}
  
  			// add Draggable events
  			initResizable(pane);
  
  			// ADD CLASSNAMES & SLIDE-BINDINGS - eg: class="resizer resizer-west resizer-open"
  			if (s.isVisible)
  				setAsOpen(pane);	// onOpen will be called, but NOT onResize
  			else {
  				setAsClosed(pane);	// onClose will be called
  				bindStartSlidingEvent(pane, true); // will enable events IF option is set
  			}
  
  		});
  
  		// SET ALL HANDLE DIMENSIONS
  		sizeHandles("all");
  	}
  
  
  	/**
  	* Initialize scrolling ui-layout-content div - if exists
  	*
  	* @see  initPane() - or externally after an Ajax injection
  	* @param {string}	pane		The pane to process
  	* @param {boolean=}	resize		Size content after init, default = true
  	*/
  ,	initContent = function (pane, resize) {
  		if (!isInitialized()) return;
  		var 
  			o	= options[pane]
  		,	sel	= o.contentSelector
  		,	$P	= $Ps[pane]
  		,	$C
  		;
  		if (sel) $C = $Cs[pane] = (o.findNestedContent)
  			? $P.find(sel).eq(0) // match 1-element only
  			: $P.children(sel).eq(0)
  		;
  		if ($C && $C.length) {
  			// SAVE original Pane CSS
  			if (!$C.data("layoutCSS"))
  				$C.data("layoutCSS", elCSS($C, "height"));
  			$C.css( _c.content.cssReq );
  			if (o.applyDemoStyles) {
  				$C.css( _c.content.cssDemo ); // add padding & overflow: auto to content-div
  				$P.css( _c.content.cssDemoPane ); // REMOVE padding/scrolling from pane
  			}
  			state[pane].content = {}; // init content state
  			if (resize !== false) sizeContent(pane);
  			// sizeContent() is called AFTER init of all elements
  		}
  		else
  			$Cs[pane] = false;
  	}
  
  
  	/**
  	* Searches for .ui-layout-button-xxx elements and auto-binds them as layout-buttons
  	*
  	* @see  _create()
  	*/
  ,	initButtons = function () {
  		var pre	= "ui-layout-button-", name;
  		$.each("toggle,open,close,pin,toggle-slide,open-slide".split(","), function (i, action) {
  			$.each(_c.borderPanes.split(","), function (ii, pane) {
  				$("."+pre+action+"-"+pane).each(function(){
  					// if button was previously 'bound', data.layoutName was set, but is blank if layout has no 'name'
  					name = $(this).data("layoutName") || $(this).attr("layoutName");
  					if (name == undefined || name == options.name)
  						bindButton(this, action, pane);
  				});
  			});
  		});
  	}
  
  	/**
  	* Add resize-bars to all panes that specify it in options
  	* -dependancy: $.fn.resizable - will skip if not found
  	*
  	* @see			_create()
  	* @param {string=}	panes		The edge(s) to process, blank = all
  	*/
  ,	initResizable = function (panes) {
  		var
  			draggingAvailable = (typeof $.fn.draggable == "function")
  		,	$Frames, side // set in start()
  		;
  		if (!panes || panes == "all") panes = _c.borderPanes;
  
  		$.each(panes.split(","), function (idx, pane) {
  			var 
  				o	= options[pane]
  			,	s	= state[pane]
  			,	c	= _c[pane]
  			,	side = (c.dir=="horz" ? "top" : "left")
  			,	r, live // set in start because may change
  			;
  			if (!draggingAvailable || !$Ps[pane] || !o.resizable) {
  				o.resizable = false;
  				return true; // skip to next
  			}
  
  			var 
  				$P 		= $Ps[pane]
  			,	$R		= $Rs[pane]
  			,	base	= o.resizerClass
  			//	'drag' classes are applied to the ORIGINAL resizer-bar while dragging is in process
  			,	resizerClass		= base+"-drag"				// resizer-drag
  			,	resizerPaneClass	= base+"-"+pane+"-drag"		// resizer-north-drag
  			//	'helper' class is applied to the CLONED resizer-bar while it is being dragged
  			,	helperClass			= base+"-dragging"			// resizer-dragging
  			,	helperPaneClass		= base+"-"+pane+"-dragging" // resizer-north-dragging
  			,	helperLimitClass	= base+"-dragging-limit"	// resizer-drag
  			,	helperPaneLimitClass = base+"-"+pane+"-dragging-limit"	// resizer-north-drag
  			,	helperClassesSet	= false 					// logic var
  			;
  
  			if (!s.isClosed)
  				$R
  					.attr("title", o.resizerTip)
  					.css("cursor", o.resizerCursor) // n-resize, s-resize, etc
  				;
  
  			$R.bind("mouseenter."+ sID, onResizerEnter)
  			  .bind("mouseleave."+ sID, onResizerLeave);
  
  			$R.draggable({
  				containment:	$N[0] // limit resizing to layout container
  			,	axis:			(c.dir=="horz" ? "y" : "x") // limit resizing to horz or vert axis
  			,	delay:			0
  			,	distance:		1
  			//	basic format for helper - style it using class: .ui-draggable-dragging
  			,	helper:			"clone"
  			,	opacity:		o.resizerDragOpacity
  			,	addClasses:		false // avoid ui-state-disabled class when disabled
  			//,	iframeFix:		o.draggableIframeFix // TODO: consider using when bug is fixed
  			,	zIndex:			_c.zIndex.resizer_drag
  
  			,	start: function (e, ui) {
  					// REFRESH options & state pointers in case we used swapPanes
  					o = options[pane];
  					s = state[pane];
  					// re-read options
  					live = o.resizeWhileDragging;
  
  					// ondrag_start callback - will CANCEL hide if returns false
  					// TODO: dragging CANNOT be cancelled like this, so see if there is a way?
  					if (false === _execCallback(pane, o.ondrag_start)) return false;
  
  					_c.isLayoutBusy	= true; // used by sizePane() logic during a liveResize
  					s.isResizing	= true; // prevent pane from closing while resizing
  					timer.clear(pane+"_closeSlider"); // just in case already triggered
  
  					// SET RESIZER LIMITS - used in drag()
  					setSizeLimits(pane); // update pane/resizer state
  					r = s.resizerPosition;
  
  					$R.addClass( resizerClass +" "+ resizerPaneClass ); // add drag classes
  					helperClassesSet = false; // reset logic var - see drag()
  
  					// MASK PANES WITH IFRAMES OR OTHER TROUBLESOME ELEMENTS
  					$Frames = $(o.maskIframesOnResize === true ? "iframe" : o.maskIframesOnResize).filter(":visible");
  					var id, i=0; // ID incrementer - used when 'resizing' masks during dynamic resizing
  					$Frames.each(function() {					
  						id = "ui-layout-mask-"+ (++i);
  						$(this).data("layoutMaskID", id); // tag iframe with corresponding maskID
  						$('<div id="'+ id +'" class="ui-layout-mask ui-layout-mask-'+ pane +'"/>')
  							.css({
  								background:	"#fff"
  							,	opacity:	"0.001"
  							,	zIndex:		_c.zIndex.iframe_mask
  							,	position:	"absolute"
  							,	width:		this.offsetWidth+"px"
  							,	height:		this.offsetHeight+"px"
  							})
  							.css($(this).position()) // top & left -- changed from offset()
  							.appendTo(this.parentNode) // put mask-div INSIDE pane to avoid zIndex issues
  						;
  					});
  
  					// DISABLE TEXT SELECTION (probably already done by resizer.mouseOver)
  					$('body').disableSelection(); 
  				}
  
  			,	drag: function (e, ui) {
  					if (!helperClassesSet) { // can only add classes after clone has been added to the DOM
  						//$(".ui-draggable-dragging")
  						ui.helper
  							.addClass( helperClass +" "+ helperPaneClass ) // add helper classes
  							.css({ right: "auto", bottom: "auto" })	// fix dir="rtl" issue
  							.children().css("visibility","hidden")	// hide toggler inside dragged resizer-bar
  						;
  						helperClassesSet = true;
  						// draggable bug!? RE-SET zIndex to prevent E/W resize-bar showing through N/S pane!
  						if (s.isSliding) $Ps[pane].css("zIndex", _c.zIndex.pane_sliding);
  					}
  					// CONTAIN RESIZER-BAR TO RESIZING LIMITS
  					var limit = 0;
  					if (ui.position[side] < r.min) {
  						ui.position[side] = r.min;
  						limit = -1;
  					}
  					else if (ui.position[side] > r.max) {
  						ui.position[side] = r.max;
  						limit = 1;
  					}
  					// ADD/REMOVE dragging-limit CLASS
  					if (limit) {
  						ui.helper.addClass( helperLimitClass +" "+ helperPaneLimitClass ); // at dragging-limit
  						window.defaultStatus = "Panel has reached its " +
  							((limit>0 && pane.match(/north|west/)) || (limit<0 && pane.match(/south|east/)) ? "maximum" : "minimum") +" size";
  					}
  					else {
  						ui.helper.removeClass( helperLimitClass +" "+ helperPaneLimitClass ); // not at dragging-limit
  						window.defaultStatus = "";
  					}
  					// DYNAMICALLY RESIZE PANES IF OPTION ENABLED
  					if (live) resizePanes(e, ui, pane);
  				}
  
  			,	stop: function (e, ui) {
  					$('body').enableSelection(); // RE-ENABLE TEXT SELECTION
  					window.defaultStatus = ""; // clear 'resizing limit' message from statusbar
  					$R.removeClass( resizerClass +" "+ resizerPaneClass ); // remove drag classes from Resizer
  					s.isResizing = false;
  					_c.isLayoutBusy	= false; // set BEFORE resizePanes so other logic can pick it up
  					resizePanes(e, ui, pane, true); // true = resizingDone
  				}
  
  			});
  
  			/**
  			* resizePanes
  			*
  			* Sub-routine called from stop() and optionally drag()
  			*
  			* @param {!Object}		evt
  			* @param {!Object}		ui
  			* @param {string}		pane
  			* @param {boolean=}		resizingDone
  			*/
  			var resizePanes = function (evt, ui, pane, resizingDone) {
  				var 
  					dragPos	= ui.position
  				,	c		= _c[pane]
  				,	resizerPos, newSize
  				,	i = 0 // ID incrementer
  				;
  				switch (pane) {
  					case "north":	resizerPos = dragPos.top; break;
  					case "west":	resizerPos = dragPos.left; break;
  					case "south":	resizerPos = sC.offsetHeight - dragPos.top  - o.spacing_open; break;
  					case "east":	resizerPos = sC.offsetWidth  - dragPos.left - o.spacing_open; break;
  				};
  
  				if (resizingDone) {
  					// Remove OR Resize MASK(S) created in drag.start
  					$("div.ui-layout-mask").each(function() { this.parentNode.removeChild(this); });
  					//$("div.ui-layout-mask").remove(); // TODO: Is this less efficient?
  
  					// ondrag_start callback - will CANCEL hide if returns false
  					if (false === _execCallback(pane, o.ondrag_end || o.ondrag)) return false;
  				}
  				else
  					$Frames.each(function() {
  						$("#"+ $(this).data("layoutMaskID")) // get corresponding mask by ID
  							.css($(this).position()) // update top & left
  							.css({ // update width & height
  								width:	this.offsetWidth +"px"
  							,	height:	this.offsetHeight+"px"
  							})
  						;
  					});
  
  				// remove container margin from resizer position to get the pane size
  				newSize = resizerPos - sC["inset"+ c.side];
  				manualSizePane(pane, newSize);
  			}
  		});
  	}
  
  
  	/**
  	*	Destroy this layout and reset all elements
  	*/
  ,	destroy = function () {
  		// UNBIND layout events and remove global object
  		$(window).unbind("."+ sID);
  		$(document).unbind("."+ sID);
  
  		// loop all panes to remove layout classes, attributes and bindings
  		$.each(_c.allPanes.split(","), function (i, pane) {
  			removePane( pane, false, true ); // true = skipResize
  		});
  
  		// reset layout-container
  		$N	.removeData("layout")
  			.removeData("layoutContainer")
  			.removeClass(options.containerClass)
  		;
  
  		// do NOT reset container CSS if is a 'pane' in an outer-layout - ie, THIS layout is 'nested'
  		if (!$N.data("layoutEdge") && $N.data("layoutCSS")) // RESET CSS
  			$N.css( $N.data("layoutCSS") ).removeData("layoutCSS");
  
  		// for full-page layouts, also reset the <HTML> CSS
  		if (sC.tagName == "BODY" && ($N = $("html")).data("layoutCSS")) // RESET <HTML> CSS
  			$N.css( $N.data("layoutCSS") ).removeData("layoutCSS");
  
  		// trigger state-management and onunload callback
  		unload();
  	}
  
  	/**
  	* Remove a pane from the layout - subroutine of destroy()
  	*
  	* @see  destroy()
  	* @param {string}	pane		The pane to process
  	* @param {boolean=}	remove		Remove the DOM element?		default = false
  	* @param {boolean=}	skipResize	Skip calling resizeAll()?	default = false
  	*/
  ,	removePane = function (pane, remove, skipResize) {
  		if (!isInitialized()) return;
  		if (!$Ps[pane]) return; // NO SUCH PANE
  		var
  			$P		= $Ps[pane]
  		,	$C		= $Cs[pane]
  		,	$R		= $Rs[pane]
  		,	$T		= $Ts[pane]
  		//	create list of ALL pane-classes that need to be removed
  		,	_open	= "-open"
  		,	_sliding= "-sliding"
  		,	_closed	= "-closed"
  		,	root	= options[pane].paneClass // default="ui-layout-pane"
  		,	pRoot	= root +"-"+ pane // eg: "ui-layout-pane-west"
  		,	classes	= [	root, root+_open, root+_closed, root+_sliding,		// generic classes
  						pRoot, pRoot+_open, pRoot+_closed, pRoot+_sliding ]	// pane-specific classes
  		;
  		$.merge(classes, getHoverClasses($P, true)); // ADD hover-classes
  
  		if (!$P || !$P.length) {
  			} // pane has already been deleted!
  		else if (remove && !$P.data("layoutContainer") && (!$C || !$C.length || !$C.data("layoutContainer")))
  			$P.remove();
  		else {
  			$P	.removeClass( classes.join(" ") ) // remove ALL pane-classes
  				.removeData("layoutParent")
  				.removeData("layoutRole")
  				.removeData("layoutEdge")
  				.removeData("autoHidden")	// in case set
  				.unbind("."+ sID) // remove ALL Layout events
  				// TODO: remove these extra unbind commands when jQuery is fixed
  				//.unbind("mouseenter"+ sID)
  				//.unbind("mouseleave"+ sID)
  			;
  			// do NOT reset CSS if this pane is STILL the container of a nested layout!
  			// the nested layout will reset its 'container' when/if it is destroyed
  			if (!$P.data("layoutContainer"))
  				$P.css( $P.data("layoutCSS") ).removeData("layoutCSS");
  			// DITTO for the Content elem
  			if ($C && $C.length && !$C.data("layoutContainer"))
  				$C.css( $C.data("layoutCSS") ).removeData("layoutCSS");
  		}
  
  		// REMOVE pane resizer and toggler elements
  		if ($T && $T.length) $T.remove();
  		if ($R && $R.length) $R.remove();
  
  		// CLEAR all pointers and data
  		$Ps[pane] = $Cs[pane] = $Rs[pane] = $Ts[pane] = false;
  
  		// skip resize & state-clear when called from destroy()
  		if (!skipResize) {
  			resizeAll();
  			state[pane] = {};
  		}
  	}
  
  
  /*
   * ###########################
   *	   ACTION METHODS
   * ###########################
   */
  
  	/**
  	* Completely 'hides' a pane, including its spacing - as if it does not exist
  	* The pane is not actually 'removed' from the source, so can use 'show' to un-hide it
  	*
  	* @param {string}	pane		The pane being hidden, ie: north, south, east, or west
  	* @param {boolean=}	noAnimation	
  	*/
  ,	hide = function (pane, noAnimation) {
  		if (!isInitialized()) return;
  		var
  			o	= options[pane]
  		,	s	= state[pane]
  		,	$P	= $Ps[pane]
  		,	$R	= $Rs[pane]
  		;
  		if (!$P || s.isHidden) return; // pane does not exist OR is already hidden
  
  		// onhide_start callback - will CANCEL hide if returns false
  		if (state.initialized && false === _execCallback(pane, o.onhide_start)) return;
  
  		s.isSliding = false; // just in case
  
  		// now hide the elements
  		if ($R) $R.hide(); // hide resizer-bar
  		if (!state.initialized || s.isClosed) {
  			s.isClosed = true; // to trigger open-animation on show()
  			s.isHidden  = true;
  			s.isVisible = false;
  			$P.hide(); // no animation when loading page
  			sizeMidPanes(_c[pane].dir == "horz" ? "all" : "center");
  			if (state.initialized || o.triggerEventsOnLoad)
  				_execCallback(pane, o.onhide_end || o.onhide);
  		}
  		else {
  			s.isHiding = true; // used by onclose
  			close(pane, false, noAnimation); // adjust all panes to fit
  		}
  	}
  
  	/**
  	* Show a hidden pane - show as 'closed' by default unless openPane = true
  	*
  	* @param {string}	pane		The pane being opened, ie: north, south, east, or west
  	* @param {boolean=}	openPane
  	* @param {boolean=}	noAnimation
  	* @param {boolean=}	noAlert
  	*/
  ,	show = function (pane, openPane, noAnimation, noAlert) {
  		if (!isInitialized()) return;
  		var
  			o	= options[pane]
  		,	s	= state[pane]
  		,	$P	= $Ps[pane]
  		,	$R	= $Rs[pane]
  		;
  		if (!$P || !s.isHidden) return; // pane does not exist OR is not hidden
  
  		// onshow_start callback - will CANCEL show if returns false
  		if (false === _execCallback(pane, o.onshow_start)) return;
  
  		s.isSliding = false; // just in case
  		s.isShowing = true; // used by onopen/onclose
  		//s.isHidden  = false; - will be set by open/close - if not cancelled
  
  		// now show the elements
  		//if ($R) $R.show(); - will be shown by open/close
  		if (openPane === false)
  			close(pane, true); // true = force
  		else
  			open(pane, false, noAnimation, noAlert); // adjust all panes to fit
  	}
  
  
  	/**
  	* Toggles a pane open/closed by calling either open or close
  	*
  	* @param {string}	pane   The pane being toggled, ie: north, south, east, or west
  	* @param {boolean=}	slide
  	*/
  ,	toggle = function (pane, slide) {
  		if (!isInitialized()) return;
  		if (!isStr(pane)) {
  			pane.stopImmediatePropagation(); // pane = event
  			pane = $(this).data("layoutEdge"); // bound to $R.dblclick
  		}
  		var s = state[str(pane)];
  		if (s.isHidden)
  			show(pane); // will call 'open' after unhiding it
  		else if (s.isClosed)
  			open(pane, !!slide);
  		else
  			close(pane);
  	}
  
  
  	/**
  	* Utility method used during init or other auto-processes
  	*
  	* @param {string}	pane   The pane being closed
  	* @param {boolean=}	setHandles
  	*/
  ,	_closePane = function (pane, setHandles) {
  		var
  			$P	= $Ps[pane]
  		,	s	= state[pane]
  		;
  		$P.hide();
  		s.isClosed = true;
  		s.isVisible = false;
  		// UNUSED: if (setHandles) setAsClosed(pane, true); // true = force
  	}
  
  	/**
  	* Close the specified pane (animation optional), and resize all other panes as needed
  	*
  	* @param {string}	pane		The pane being closed, ie: north, south, east, or west
  	* @param {boolean=}	force	
  	* @param {boolean=}	noAnimation	
  	* @param {boolean=}	skipCallback	
  	*/
  ,	close = function (pane, force, noAnimation, skipCallback) {
  		if (!state.initialized && $Ps[pane]) {
  			_closePane(pane); // INIT pane as closed
  			return;
  		}
  		if (!isInitialized()) return;
  		var
  			$P		= $Ps[pane]
  		,	$R		= $Rs[pane]
  		,	$T		= $Ts[pane]
  		,	o		= options[pane]
  		,	s		= state[pane]
  		,	doFX	= !noAnimation && !s.isClosed && (o.fxName_close != "none")
  		// 	transfer logic vars to temp vars
  		,	isShowing	= s.isShowing
  		,	isHiding	= s.isHiding
  		,	wasSliding	= s.isSliding
  		;
  		// now clear the logic vars
  		delete s.isShowing;
  		delete s.isHiding;
  
  		if (!$P || (!o.closable && !isShowing && !isHiding)) return; // invalid request // (!o.resizable && !o.closable) ???
  		else if (!force && s.isClosed && !isShowing) return; // already closed
  
  		if (_c.isLayoutBusy) { // layout is 'busy' - probably with an animation
  			_queue("close", pane, force); // set a callback for this action, if possible
  			return; // ABORT 
  		}
  
  		// onclose_start callback - will CANCEL hide if returns false
  		// SKIP if just 'showing' a hidden pane as 'closed'
  		if (!isShowing && false === _execCallback(pane, o.onclose_start)) return;
  
  		// SET flow-control flags
  		_c[pane].isMoving = true;
  		_c.isLayoutBusy = true;
  
  		s.isClosed = true;
  		s.isVisible = false;
  		// update isHidden BEFORE sizing panes
  		if (isHiding) s.isHidden = true;
  		else if (isShowing) s.isHidden = false;
  
  		if (s.isSliding) // pane is being closed, so UNBIND trigger events
  			bindStopSlidingEvents(pane, false); // will set isSliding=false
  		else // resize panes adjacent to this one
  			sizeMidPanes(_c[pane].dir == "horz" ? "all" : "center", false); // false = NOT skipCallback
  
  		// if this pane has a resizer bar, move it NOW - before animation
  		setAsClosed(pane);
  
  		// CLOSE THE PANE
  		if (doFX) { // animate the close
  			lockPaneForFX(pane, true); // need to set left/top so animation will work
  			$P.hide( o.fxName_close, o.fxSettings_close, o.fxSpeed_close, function () {
  				lockPaneForFX(pane, false); // undo
  				close_2();
  			});
  		}
  		else { // hide the pane without animation
  			$P.hide();
  			close_2();
  		};
  
  		// SUBROUTINE
  		function close_2 () {
  			if (s.isClosed) { // make sure pane was not 'reopened' before animation finished!
  
  				bindStartSlidingEvent(pane, true); // will enable if o.slidable = true
  
  				// if opposite-pane was autoClosed, see if it can be autoOpened now
  				var altPane = _c.altSide[pane];
  				if (state[ altPane ].noRoom) {
  					setSizeLimits( altPane );
  					makePaneFit( altPane );
  				}
  
  				if (!skipCallback && (state.initialized || o.triggerEventsOnLoad)) {
  					// onclose callback - UNLESS just 'showing' a hidden pane as 'closed'
  					if (!isShowing) _execCallback(pane, o.onclose_end || o.onclose);
  					// onhide OR onshow callback
  					if (isShowing)	_execCallback(pane, o.onshow_end || o.onshow);
  					if (isHiding)	_execCallback(pane, o.onhide_end || o.onhide);
  				}
  			}
  			// execute internal flow-control callback
  			_dequeue(pane);
  		}
  	}
  
  	/**
  	* @param {string}	pane	The pane just closed, ie: north, south, east, or west
  	*/
  ,	setAsClosed = function (pane) {
  		var
  			$P		= $Ps[pane]
  		,	$R		= $Rs[pane]
  		,	$T		= $Ts[pane]
  		,	o		= options[pane]
  		,	s		= state[pane]
  		,	side	= _c[pane].side.toLowerCase()
  		,	inset	= "inset"+ _c[pane].side
  		,	rClass	= o.resizerClass
  		,	tClass	= o.togglerClass
  		,	_pane	= "-"+ pane // used for classNames
  		,	_open	= "-open"
  		,	_sliding= "-sliding"
  		,	_closed	= "-closed"
  		;
  		$R
  			.css(side, sC[inset]) // move the resizer
  			.removeClass( rClass+_open +" "+ rClass+_pane+_open )
  			.removeClass( rClass+_sliding +" "+ rClass+_pane+_sliding )
  			.addClass( rClass+_closed +" "+ rClass+_pane+_closed )
  			.unbind("dblclick."+ sID)
  		;
  		// DISABLE 'resizing' when closed - do this BEFORE bindStartSlidingEvent?
  		if (o.resizable && typeof $.fn.draggable == "function")
  			$R
  				.draggable("disable")
  				.removeClass("ui-state-disabled") // do NOT apply disabled styling - not suitable here
  				.css("cursor", "default")
  				.attr("title","")
  			;
  
  		// if pane has a toggler button, adjust that too
  		if ($T) {
  			$T
  				.removeClass( tClass+_open +" "+ tClass+_pane+_open )
  				.addClass( tClass+_closed +" "+ tClass+_pane+_closed )
  				.attr("title", o.togglerTip_closed) // may be blank
  			;
  			// toggler-content - if exists
  			$T.children(".content-open").hide();
  			$T.children(".content-closed").css("display","block");
  		}
  
  		// sync any 'pin buttons'
  		syncPinBtns(pane, false);
  
  		if (state.initialized) {
  			// resize 'length' and position togglers for adjacent panes
  			sizeHandles("all");
  		}
  	}
  
  	/**
  	* Open the specified pane (animation optional), and resize all other panes as needed
  	*
  	* @param {string}	pane		The pane being opened, ie: north, south, east, or west
  	* @param {boolean=}	slide	
  	* @param {boolean=}	noAnimation	
  	* @param {boolean=}	noAlert	
  	*/
  ,	open = function (pane, slide, noAnimation, noAlert) {
  		if (!isInitialized()) return;
  		var 
  			$P		= $Ps[pane]
  		,	$R		= $Rs[pane]
  		,	$T		= $Ts[pane]
  		,	o		= options[pane]
  		,	s		= state[pane]
  		,	doFX	= !noAnimation && s.isClosed && (o.fxName_open != "none")
  		// 	transfer logic var to temp var
  		,	isShowing = s.isShowing
  		;
  		// now clear the logic var
  		delete s.isShowing;
  
  		if (!$P || (!o.resizable && !o.closable && !isShowing)) return; // invalid request
  		else if (s.isVisible && !s.isSliding) return; // already open
  
  		// pane can ALSO be unhidden by just calling show(), so handle this scenario
  		if (s.isHidden && !isShowing) {
  			show(pane, true);
  			return;
  		}
  
  		if (_c.isLayoutBusy) { // layout is 'busy' - probably with an animation
  			_queue("open", pane, slide); // set a callback for this action, if possible
  			return; // ABORT
  		}
  
  		setSizeLimits(pane, slide); // update pane-state
  
  		// onopen_start callback - will CANCEL hide if returns false
  		if (false === _execCallback(pane, o.onopen_start)) return;
  
  		// make sure there is enough space available to open the pane
  		setSizeLimits(pane, slide); // update pane-state
  		if (s.minSize > s.maxSize) { // INSUFFICIENT ROOM FOR PANE TO OPEN!
  			syncPinBtns(pane, false); // make sure pin-buttons are reset
  			if (!noAlert && o.noRoomToOpenTip)
  				alert(o.noRoomToOpenTip);
  			return; // ABORT
  		}
  
  		// SET flow-control flags
  		_c[pane].isMoving = true;
  		_c.isLayoutBusy = true;
  
  		if (slide) // START Sliding - will set isSliding=true
  			bindStopSlidingEvents(pane, true); // BIND trigger events to close sliding-pane
  		else if (s.isSliding) // PIN PANE (stop sliding) - open pane 'normally' instead
  			bindStopSlidingEvents(pane, false); // UNBIND trigger events - will set isSliding=false
  		else if (o.slidable)
  			bindStartSlidingEvent(pane, false); // UNBIND trigger events
  
  		s.noRoom = false; // will be reset by makePaneFit if 'noRoom'
  		makePaneFit(pane);
  
  		s.isVisible = true;
  		s.isClosed	= false;
  		// update isHidden BEFORE sizing panes - WHY??? Old?
  		if (isShowing) s.isHidden = false;
  
  		if (doFX) { // ANIMATE
  			lockPaneForFX(pane, true); // need to set left/top so animation will work
  			$P.show( o.fxName_open, o.fxSettings_open, o.fxSpeed_open, function() {
  				lockPaneForFX(pane, false); // undo
  				open_2(); // continue
  			});
  		}
  		else {// no animation
  			$P.show();	// just show pane and...
  			open_2();	// continue
  		};
  
  		// SUBROUTINE
  		function open_2 () {
  			if (s.isVisible) { // make sure pane was not closed or hidden before animation finished!
  
  				// cure iframe display issues
  				_fixIframe(pane);
  
  				// NOTE: if isSliding, then other panes are NOT 'resized'
  				if (!s.isSliding) // resize all panes adjacent to this one
  					sizeMidPanes(_c[pane].dir=="vert" ? "center" : "all", false); // false = NOT skipCallback
  
  				// set classes, position handles and execute callbacks...
  				setAsOpen(pane);
  			}
  
  			// internal flow-control callback
  			_dequeue(pane);
  		};
  	
  	}
  
  	/**
  	* @param {string}	pane		The pane just opened, ie: north, south, east, or west
  	* @param {boolean=}	skipCallback	
  	*/
  ,	setAsOpen = function (pane, skipCallback) {
  		var 
  			$P		= $Ps[pane]
  		,	$R		= $Rs[pane]
  		,	$T		= $Ts[pane]
  		,	o		= options[pane]
  		,	s		= state[pane]
  		,	side	= _c[pane].side.toLowerCase()
  		,	inset	= "inset"+ _c[pane].side
  		,	rClass	= o.resizerClass
  		,	tClass	= o.togglerClass
  		,	_pane	= "-"+ pane // used for classNames
  		,	_open	= "-open"
  		,	_closed	= "-closed"
  		,	_sliding= "-sliding"
  		;
  		$R
  			.css(side, sC[inset] + getPaneSize(pane)) // move the resizer
  			.removeClass( rClass+_closed +" "+ rClass+_pane+_closed )
  			.addClass( rClass+_open +" "+ rClass+_pane+_open )
  		;
  		if (s.isSliding)
  			$R.addClass( rClass+_sliding +" "+ rClass+_pane+_sliding )
  		else // in case 'was sliding'
  			$R.removeClass( rClass+_sliding +" "+ rClass+_pane+_sliding )
  
  		if (o.resizerDblClickToggle)
  			$R.bind("dblclick", toggle );
  		removeHover( 0, $R ); // remove hover classes
  		if (o.resizable && typeof $.fn.draggable == "function")
  			$R
  				.draggable("enable")
  				.css("cursor", o.resizerCursor)
  				.attr("title", o.resizerTip)
  			;
  		else if (!s.isSliding)
  			$R.css("cursor", "default"); // n-resize, s-resize, etc
  
  		// if pane also has a toggler button, adjust that too
  		if ($T) {
  			$T
  				.removeClass( tClass+_closed +" "+ tClass+_pane+_closed )
  				.addClass( tClass+_open +" "+ tClass+_pane+_open )
  				.attr("title", o.togglerTip_open) // may be blank
  			;
  			removeHover( 0, $T ); // remove hover classes
  			// toggler-content - if exists
  			$T.children(".content-closed").hide();
  			$T.children(".content-open").css("display","block");
  		}
  
  		// sync any 'pin buttons'
  		syncPinBtns(pane, !s.isSliding);
  
  		// update pane-state dimensions - BEFORE resizing content
  		$.extend(s, elDims($P));
  
  		if (state.initialized) {
  			// resize resizer & toggler sizes for all panes
  			sizeHandles("all");
  			// resize content every time pane opens - to be sure
  			sizeContent(pane, true); // true = remeasure headers/footers, even if 'isLayoutBusy'
  		}
  
  		if (!skipCallback && (state.initialized || o.triggerEventsOnLoad) && $P.is(":visible")) {
  			// onopen callback
  			_execCallback(pane, o.onopen_end || o.onopen);
  			// onshow callback - TODO: should this be here?
  			if (s.isShowing) _execCallback(pane, o.onshow_end || o.onshow);
  			// ALSO call onresize because layout-size *may* have changed while pane was closed
  			if (state.initialized) {
  				_execCallback(pane, o.onresize_end || o.onresize);
  				resizeNestedLayout(pane);
  			}
  		}
  	}
  
  
  	/**
  	* slideOpen / slideClose / slideToggle
  	*
  	* Pass-though methods for sliding
  	*/
  ,	slideOpen = function (evt_or_pane) {
  		if (!isInitialized()) return;
  		var
  			evt		= isStr(evt_or_pane) ? null : evt_or_pane
  		,	pane	= evt ? $(this).data("layoutEdge") : evt_or_pane
  		,	s		= state[pane]
  		,	delay	= options[pane].slideDelay_open
  		;
  		// prevent event from triggering on NEW resizer binding created below
  		if (evt) evt.stopImmediatePropagation();
  
  		if (s.isClosed && evt && evt.type == "mouseenter" && delay > 0)
  			// trigger = mouseenter - use a delay
  			timer.set(pane+"_openSlider", open_NOW, delay);
  		else
  			open_NOW(); // will unbind events if is already open
  
  		/**
  		* SUBROUTINE for timed open
  		*/
  		function open_NOW (evt) {
  			if (!s.isClosed) // skip if no longer closed!
  				bindStopSlidingEvents(pane, true); // BIND trigger events to close sliding-pane
  			else if (!_c[pane].isMoving)
  				open(pane, true); // true = slide - open() will handle binding
  		};
  	}
  
  ,	slideClose = function (evt_or_pane) {
  		if (!isInitialized()) return;
  		var
  			evt		= isStr(evt_or_pane) ? null : evt_or_pane
  		,	pane	= evt ? $(this).data("layoutEdge") : evt_or_pane
  		,	o		= options[pane]
  		,	s		= state[pane]
  		,	delay	= _c[pane].isMoving ? 1000 : 300 // MINIMUM delay - option may override
  		;
  
  		if (s.isClosed || s.isResizing)
  			return; // skip if already closed OR in process of resizing
  		else if (o.slideTrigger_close == "click")
  			close_NOW(); // close immediately onClick
  		else if (o.preventQuickSlideClose && _c.isLayoutBusy)
  			return; // handle Chrome quick-close on slide-open
  		else if (o.preventPrematureSlideClose && evt && $.layout.isMouseOverElem(evt, $Ps[pane]))
  			return; // handle incorrect mouseleave trigger, like when over a SELECT-list in IE
  		else if (evt) // trigger = mouseleave - use a delay
  			// 1 sec delay if 'opening', else .3 sec
  			timer.set(pane+"_closeSlider", close_NOW, max(o.slideDelay_close, delay));
  		else // called programically
  			close_NOW();
  
  		/**
  		* SUBROUTINE for timed close
  		*/
  		function close_NOW () {
  			if (s.isClosed) // skip 'close' if already closed!
  				bindStopSlidingEvents(pane, false); // UNBIND trigger events - TODO: is this needed here?
  			else if (!_c[pane].isMoving)
  				close(pane); // close will handle unbinding
  		};
  	}
  
  ,	slideToggle = function (pane) { toggle(pane, true); }
  
  
  	/**
  	* Must set left/top on East/South panes so animation will work properly
  	*
  	* @param {string}  pane  The pane to lock, 'east' or 'south' - any other is ignored!
  	* @param {boolean}  doLock  true = set left/top, false = remove
  	*/
  ,	lockPaneForFX = function (pane, doLock) {
  		var $P = $Ps[pane];
  		if (doLock) {
  			$P.css({ zIndex: _c.zIndex.pane_animate }); // overlay all elements during animation
  			if (pane=="south")
  				$P.css({ top: sC.insetTop + sC.innerHeight - $P.outerHeight() });
  			else if (pane=="east")
  				$P.css({ left: sC.insetLeft + sC.innerWidth - $P.outerWidth() });
  		}
  		else { // animation DONE - RESET CSS
  			// TODO: see if this can be deleted. It causes a quick-close when sliding in Chrome
  			$P.css({ zIndex: (state[pane].isSliding ? _c.zIndex.pane_sliding : _c.zIndex.pane_normal) });
  			if (pane=="south")
  				$P.css({ top: "auto" });
  			else if (pane=="east")
  				$P.css({ left: "auto" });
  			// fix anti-aliasing in IE - only needed for animations that change opacity
  			var o = options[pane];
  			if ($.layout.browser.msie && o.fxOpacityFix && o.fxName_open != "slide" && $P.css("filter") && $P.css("opacity") == 1)
  				$P[0].style.removeAttribute('filter');
  		}
  	}
  
  
  	/**
  	* Toggle sliding functionality of a specific pane on/off by adding removing 'slide open' trigger
  	*
  	* @see  open(), close()
  	* @param {string}	pane	The pane to enable/disable, 'north', 'south', etc.
  	* @param {boolean}	enable	Enable or Disable sliding?
  	*/
  ,	bindStartSlidingEvent = function (pane, enable) {
  		var 
  			o		= options[pane]
  		,	$P		= $Ps[pane]
  		,	$R		= $Rs[pane]
  		,	trigger	= o.slideTrigger_open.toLowerCase()
  		;
  		if (!$R || (enable && !o.slidable)) return;
  
  		// make sure we have a valid event
  		if (trigger.match(/mouseover/))
  			trigger = o.slideTrigger_open = "mouseenter";
  		else if (!trigger.match(/click|dblclick|mouseenter/)) 
  			trigger = o.slideTrigger_open = "click";
  
  		$R
  			// add or remove trigger event
  			[enable ? "bind" : "unbind"](trigger +'.'+ sID, slideOpen)
  			// set the appropriate cursor & title/tip
  			.css("cursor", enable ? o.sliderCursor : "default")
  			.attr("title", enable ? o.sliderTip : "")
  		;
  	}
  
  	/**
  	* Add or remove 'mouseleave' events to 'slide close' when pane is 'sliding' open or closed
  	* Also increases zIndex when pane is sliding open
  	* See bindStartSlidingEvent for code to control 'slide open'
  	*
  	* @see  slideOpen(), slideClose()
  	* @param {string}	pane	The pane to process, 'north', 'south', etc.
  	* @param {boolean}	enable	Enable or Disable events?
  	*/
  ,	bindStopSlidingEvents = function (pane, enable) {
  		var 
  			o		= options[pane]
  		,	s		= state[pane]
  		,	z		= _c.zIndex
  		,	trigger	= o.slideTrigger_close.toLowerCase()
  		,	action	= (enable ? "bind" : "unbind")
  		,	$P		= $Ps[pane]
  		,	$R		= $Rs[pane]
  		;
  		s.isSliding = enable; // logic
  		timer.clear(pane+"_closeSlider"); // just in case
  
  		// remove 'slideOpen' trigger event from resizer
  		// ALSO will raise the zIndex of the pane & resizer
  		if (enable) bindStartSlidingEvent(pane, false);
  
  		// RE/SET zIndex - increases when pane is sliding-open, resets to normal when not
  		$P.css("zIndex", enable ? z.pane_sliding : z.pane_normal);
  		$R.css("zIndex", enable ? z.pane_sliding : z.resizer_normal);
  
  		// make sure we have a valid event
  		if (!trigger.match(/click|mouseleave/))
  			trigger = o.slideTrigger_close = "mouseleave"; // also catches 'mouseout'
  
  		// add/remove slide triggers
  		$R[action](trigger, slideClose); // base event on resize
  		// need extra events for mouseleave
  		if (trigger == "mouseleave") {
  			// also close on pane.mouseleave
  			$P[action]("mouseleave."+ sID, slideClose);
  			// cancel timer when mouse moves between 'pane' and 'resizer'
  			$R[action]("mouseenter."+ sID, cancelMouseOut);
  			$P[action]("mouseenter."+ sID, cancelMouseOut);
  		}
  
  		if (!enable)
  			timer.clear(pane+"_closeSlider");
  		else if (trigger == "click" && !o.resizable) {
  			// IF pane is not resizable (which already has a cursor and tip) 
  			// then set the a cursor & title/tip on resizer when sliding
  			$R.css("cursor", enable ? o.sliderCursor : "default");
  			$R.attr("title", enable ? o.togglerTip_open : ""); // use Toggler-tip, eg: "Close Pane"
  		}
  
  		// SUBROUTINE for mouseleave timer clearing
  		function cancelMouseOut (evt) {
  			timer.clear(pane+"_closeSlider");
  			evt.stopPropagation();
  		}
  	}
  
  
  	/**
  	* Hides/closes a pane if there is insufficient room - reverses this when there is room again
  	* MUST have already called setSizeLimits() before calling this method
  	*
  	* @param {string}		pane			The pane being resized
  	* @param {boolean=}	isOpening		Called from onOpen?
  	* @param {boolean=}	skipCallback	Should the onresize callback be run?
  	* @param {boolean=}	force
  	*/
  ,	makePaneFit = function (pane, isOpening, skipCallback, force) {
  		var
  			o	= options[pane]
  		,	s	= state[pane]
  		,	c	= _c[pane]
  		,	$P	= $Ps[pane]
  		,	$R	= $Rs[pane]
  		,	isSidePane 	= c.dir=="vert"
  		,	hasRoom		= false
  		;
  
  		// special handling for center & east/west panes
  		if (pane == "center" || (isSidePane && s.noVerticalRoom)) {
  			// see if there is enough room to display the pane
  			// ERROR: hasRoom = s.minHeight <= s.maxHeight && (isSidePane || s.minWidth <= s.maxWidth);
  			hasRoom = (s.maxHeight > 0);
  			if (hasRoom && s.noRoom) { // previously hidden due to noRoom, so show now
  				$P.show();
  				if ($R) $R.show();
  				s.isVisible = true;
  				s.noRoom = false;
  				if (isSidePane) s.noVerticalRoom = false;
  				_fixIframe(pane);
  			}
  			else if (!hasRoom && !s.noRoom) { // not currently hidden, so hide now
  				$P.hide();
  				if ($R) $R.hide();
  				s.isVisible = false;
  				s.noRoom = true;
  			}
  		}
  
  		// see if there is enough room to fit the border-pane
  		if (pane == "center") {
  			// ignore center in this block
  		}
  		else if (s.minSize <= s.maxSize) { // pane CAN fit
  			hasRoom = true;
  			if (s.size > s.maxSize) // pane is too big - shrink it
  				sizePane(pane, s.maxSize, skipCallback, force);
  			else if (s.size < s.minSize) // pane is too small - enlarge it
  				sizePane(pane, s.minSize, skipCallback, force);
  			else if ($R && $P.is(":visible")) {
  				// make sure resizer-bar is positioned correctly
  				// handles situation where nested layout was 'hidden' when initialized
  				var
  					side = c.side.toLowerCase()
  				,	pos  = s.size + sC["inset"+ c.side]
  				;
  				if ($.layout.cssNum($R, side) != pos) $R.css( side, pos );
  			}
  
  			// if was previously hidden due to noRoom, then RESET because NOW there is room
  			if (s.noRoom) {
  				// s.noRoom state will be set by open or show
  				if (s.wasOpen && o.closable) {
  					if (o.autoReopen)
  						open(pane, false, true, true); // true = noAnimation, true = noAlert
  					else // leave the pane closed, so just update state
  						s.noRoom = false;
  				}
  				else
  					show(pane, s.wasOpen, true, true); // true = noAnimation, true = noAlert
  			}
  		}
  		else { // !hasRoom - pane CANNOT fit
  			if (!s.noRoom) { // pane not set as noRoom yet, so hide or close it now...
  				s.noRoom = true; // update state
  				s.wasOpen = !s.isClosed && !s.isSliding;
  				if (s.isClosed){} // SKIP
  				else if (o.closable) // 'close' if possible
  					close(pane, true, true); // true = force, true = noAnimation
  				else // 'hide' pane if cannot just be closed
  					hide(pane, true); // true = noAnimation
  			}
  		}
  	}
  
  
  	/**
  	* sizePane / manualSizePane
  	* sizePane is called only by internal methods whenever a pane needs to be resized
  	* manualSizePane is an exposed flow-through method allowing extra code when pane is 'manually resized'
  	*
  	* @param {string}		pane			The pane being resized
  	* @param {number}		size			The *desired* new size for this pane - will be validated
  	* @param {boolean=}		skipCallback	Should the onresize callback be run?
  	*/
  ,	manualSizePane = function (pane, size, skipCallback) {
  		if (!isInitialized()) return;
  		// ANY call to sizePane will disabled autoResize
  		var
  			o = options[pane]
  		//	if resizing callbacks have been delayed and resizing is now DONE, force resizing to complete...
  		,	forceResize = o.resizeWhileDragging && !_c.isLayoutBusy //  && !o.triggerEventsWhileDragging
  		;
  		o.autoResize = false;
  		// flow-through...
  		sizePane(pane, size, skipCallback, forceResize);
  	}
  
  	/**
  	* @param {string}		pane			The pane being resized
  	* @param {number}		size			The *desired* new size for this pane - will be validated
  	* @param {boolean=}		skipCallback	Should the onresize callback be run?
  	* @param {boolean=}		force			Force resizing even if does not seem necessary
  	*/
  ,	sizePane = function (pane, size, skipCallback, force) {
  		if (!isInitialized()) return;
  		var 
  			o		= options[pane]
  		,	s		= state[pane]
  		,	$P		= $Ps[pane]
  		,	$R		= $Rs[pane]
  		,	side	= _c[pane].side.toLowerCase()
  		,	dimName	= _c[pane].sizeType.toLowerCase()
  		,	inset	= "inset"+ _c[pane].side
  		,	skipResizeWhileDragging = _c.isLayoutBusy && !o.triggerEventsWhileDragging
  		,	oldSize
  		;
  		// calculate 'current' min/max sizes
  		setSizeLimits(pane); // update pane-state
  		oldSize = s.size;
  
  		size = _parseSize(pane, size); // handle percentages & auto
  		size = max(size, _parseSize(pane, o.minSize));
  		size = min(size, s.maxSize);
  		if (size < s.minSize) { // not enough room for pane!
  			makePaneFit(pane, false, skipCallback);	// will hide or close pane
  			return;
  		}
  
  		// IF newSize is same as oldSize, then nothing to do - abort
  		if (!force && size == oldSize) return;
  
  		// onresize_start callback CANNOT cancel resizing because this would break the layout!
  		if (!skipCallback && state.initialized && s.isVisible)
  			_execCallback(pane, o.onresize_start);
  
  		// resize the pane, and make sure its visible
  		$P.css( dimName, max(1, cssSize(pane, size)) );
  
  /*
  var
  	edge	= _c[pane].sizeType.toLowerCase()
  ,	test	= [{
  			  	target:		size
  			,	attempt:	size
  			,	actual:		edge=='width' ? $P.outerWidth() : $P.outerHeight()
  			}]
  ,	lastTest = test[0]
  ,	thisTest = {}
  ;
  while (lastTest.actual != size) {
  	test.push( {} );
  	thisTest = test[ test.length - 1 ];
  
  	if (lastTest.actual > size)
  		thisTest.attempt = Math.max(1, lastTest.attempt - (lastTest.actual - size));
  	else // lastTest.actual < size
  		thisTest.attempt = Math.max(1, lastTest.attempt + (size - lastTest.actual));
  
  	$P.css( edge, cssSize(pane, thisTest.attempt) );
  
  	thisTest.actual = edge=='width' ? $P.outerWidth() : $P.outerHeight()
  
  	// after 3 tries, is as close as its gonna get!
  	if (test.length == 3) break;
  	else lastTest = thisTest;
  }
  debugData( test, pane );
  */
  
  		// update pane-state dimensions
  		s.size = size;
  		$.extend(s, elDims($P));
  
  		// reposition the resizer-bar
  		if ($R && $P.is(":visible")) $R.css( side, size + sC[inset] );
  
  		sizeContent(pane);
  
  		if (!skipCallback && !skipResizeWhileDragging && state.initialized && s.isVisible) {
  			_execCallback(pane, o.onresize_end || o.onresize);
  			resizeNestedLayout(pane);
  		}
  
  		// resize all the adjacent panes, and adjust their toggler buttons
  		// when skipCallback passed, it means the controlling method will handle 'other panes'
  		if (!skipCallback) {
  			// also no callback if live-resize is in progress and NOT triggerEventsWhileDragging
  			if (!s.isSliding) sizeMidPanes(_c[pane].dir=="horz" ? "all" : "center", skipResizeWhileDragging, force);
  			sizeHandles("all");
  		}
  
  		// if opposite-pane was autoClosed, see if it can be autoOpened now
  		var altPane = _c.altSide[pane];
  		if (size < oldSize && state[ altPane ].noRoom) {
  			setSizeLimits( altPane );
  			makePaneFit( altPane, false, skipCallback );
  		}
  	}
  
  	/**
  	* @see  initPanes(), sizePane(), resizeAll(), open(), close(), hide()
  	* @param {string}	panes			The pane(s) being resized, comma-delmited string
  	* @param {boolean=}	skipCallback	Should the onresize callback be run?
  	* @param {boolean=}	force
  	*/
  ,	sizeMidPanes = function (panes, skipCallback, force) {
  		if (!panes || panes == "all") panes = "east,west,center";
  
  		$.each(panes.split(","), function (i, pane) {
  			if (!$Ps[pane]) return; // NO PANE - skip
  			var 
  				o		= options[pane]
  			,	s		= state[pane]
  			,	$P		= $Ps[pane]
  			,	$R		= $Rs[pane]
  			,	isCenter= (pane=="center")
  			,	hasRoom	= true
  			,	CSS		= {}
  			,	newCenter	= calcNewCenterPaneDims()
  			;
  			// update pane-state dimensions
  			$.extend(s, elDims($P));
  
  			if (pane == "center") {
  				if (!force && s.isVisible && newCenter.width == s.outerWidth && newCenter.height == s.outerHeight)
  					return true; // SKIP - pane already the correct size
  				// set state for makePaneFit() logic
  				$.extend(s, cssMinDims(pane), {
  					maxWidth:	newCenter.width
  				,	maxHeight:	newCenter.height
  				});
  				CSS = newCenter;
  				// convert OUTER width/height to CSS width/height 
  				CSS.width	= cssW(pane, CSS.width);
  				CSS.height	= cssH(pane, CSS.height);
  				hasRoom		= CSS.width > 0 && CSS.height > 0;
  				// during layout init, try to shrink east/west panes to make room for center
  				if (!hasRoom && !state.initialized && o.minWidth > 0) {
  					var
  						reqPx	= o.minWidth - s.outerWidth
  					,	minE	= options.east.minSize || 0
  					,	minW	= options.west.minSize || 0
  					,	sizeE	= state.east.size
  					,	sizeW	= state.west.size
  					,	newE	= sizeE
  					,	newW	= sizeW
  					;
  					if (reqPx > 0 && state.east.isVisible && sizeE > minE) {
  						newE = max( sizeE-minE, sizeE-reqPx );
  						reqPx -= sizeE-newE;
  					}
  					if (reqPx > 0 && state.west.isVisible && sizeW > minW) {
  						newW = max( sizeW-minW, sizeW-reqPx );
  						reqPx -= sizeW-newW;
  					}
  					// IF we found enough extra space, then resize the border panes as calculated
  					if (reqPx == 0) {
  						if (sizeE != minE)
  							sizePane('east', newE, true); // true = skipCallback - initPanes will handle when done
  						if (sizeW != minW)
  							sizePane('west', newW, true);
  						// now start over!
  						sizeMidPanes('center', skipCallback, force);
  						return; // abort this loop
  					}
  				}
  			}
  			else { // for east and west, set only the height, which is same as center height
  				// set state.min/maxWidth/Height for makePaneFit() logic
  				if (s.isVisible && !s.noVerticalRoom)
  					$.extend(s, elDims($P), cssMinDims(pane))
  				if (!force && !s.noVerticalRoom && newCenter.height == s.outerHeight)
  					return true; // SKIP - pane already the correct size
  				// east/west have same top, bottom & height as center
  				CSS.top		= newCenter.top;
  				CSS.bottom	= newCenter.bottom;
  				CSS.height	= cssH(pane, newCenter.height);
  				s.maxHeight	= max(0, CSS.height);
  				hasRoom		= (s.maxHeight > 0);
  				if (!hasRoom) s.noVerticalRoom = true; // makePaneFit() logic
  			}
  
  			if (hasRoom) {
  				// resizeAll passes skipCallback because it triggers callbacks after ALL panes are resized
  				if (!skipCallback && state.initialized)
  					_execCallback(pane, o.onresize_start);
  
  				$P.css(CSS); // apply the CSS to pane
  				if (s.noRoom && !s.isClosed && !s.isHidden)
  					makePaneFit(pane); // will re-open/show auto-closed/hidden pane
  				if (s.isVisible) {
  					$.extend(s, elDims($P)); // update pane dimensions
  					if (state.initialized) sizeContent(pane); // also resize the contents, if exists
  				}
  			}
  			else if (!s.noRoom && s.isVisible) // no room for pane
  				makePaneFit(pane); // will hide or close pane
  
  			if (!s.isVisible)
  				return true; // DONE - next pane
  
  			/*
  			* Extra CSS for IE6 or IE7 in Quirks-mode - add 'width' to NORTH/SOUTH panes
  			* Normally these panes have only 'left' & 'right' positions so pane auto-sizes
  			* ALSO required when pane is an IFRAME because will NOT default to 'full width'
  			*/
  			if (pane == "center") { // finished processing midPanes
  				var b = $.layout.browser;
  				var fix = b.isIE6 || (b.msie && !b.boxModel);
  				if ($Ps.north && (fix || state.north.tagName=="IFRAME")) 
  					$Ps.north.css("width", cssW($Ps.north, sC.innerWidth));
  				if ($Ps.south && (fix || state.south.tagName=="IFRAME"))
  					$Ps.south.css("width", cssW($Ps.south, sC.innerWidth));
  			}
  
  			// resizeAll passes skipCallback because it triggers callbacks after ALL panes are resized
  			if (!skipCallback && state.initialized) {
  				_execCallback(pane, o.onresize_end || o.onresize);
  				resizeNestedLayout(pane);
  			}
  		});
  	}
  
  
  	/**
  	* @see  window.onresize(), callbacks or custom code
  	*/
  ,	resizeAll = function () {
  		if (!state.initialized) {
  			_initLayoutElements();
  			return; // no need to resize since we just initialized!
  		}
  		var	oldW	= sC.innerWidth
  		,	oldH	= sC.innerHeight
  		;
  		// cannot size layout when 'container' is hidden or collapsed
  		if (!$N.is(":visible:") ) return;
  		$.extend( state.container, elDims( $N ) ); // UPDATE container dimensions
  		if (!sC.outerHeight) return;
  
  		// onresizeall_start will CANCEL resizing if returns false
  		// state.container has already been set, so user can access this info for calcuations
  		if (false === _execCallback(null, options.onresizeall_start)) return false;
  
  		var	// see if container is now 'smaller' than before
  			shrunkH	= (sC.innerHeight < oldH)
  		,	shrunkW	= (sC.innerWidth < oldW)
  		,	$P, o, s, dir
  		;
  		// NOTE special order for sizing: S-N-E-W
  		$.each(["south","north","east","west"], function (i, pane) {
  			if (!$Ps[pane]) return; // no pane - SKIP
  			s	= state[pane];
  			o	= options[pane];
  			dir	= _c[pane].dir;
  
  			if (o.autoResize && s.size != o.size) // resize pane to original size set in options
  				sizePane(pane, o.size, true, true); // true=skipCallback, true=forceResize
  			else {
  				setSizeLimits(pane);
  				makePaneFit(pane, false, true, true); // true=skipCallback, true=forceResize
  			}
  		});
  
  		sizeMidPanes("all", true, true); // true=skipCallback, true=forceResize
  		sizeHandles("all"); // reposition the toggler elements
  
  		// trigger all individual pane callbacks AFTER layout has finished resizing
  		o = options; // reuse alias
  		$.each(_c.allPanes.split(","), function (i, pane) {
  			$P = $Ps[pane];
  			if (!$P) return; // SKIP
  			if (state[pane].isVisible) { // undefined for non-existent panes
  				_execCallback(pane, o[pane].onresize_end || o[pane].onresize); // callback - if exists
  				resizeNestedLayout(pane);
  			}
  		});
  
  		_execCallback(null, o.onresizeall_end || o.onresizeall); // onresizeall callback, if exists
  	}
  
  
  	/**
  	* Whenever a pane resizes or opens that has a nested layout, trigger resizeAll
  	*
  	* @param {string}		pane		The pane just resized or opened
  	*/
  ,	resizeNestedLayout = function (pane) {
  		var
  			$P	= $Ps[pane]
  		,	$C	= $Cs[pane]
  		,	d	= "layoutContainer"
  		;
  		if (options[pane].resizeNestedLayout) {
  			if ($P.data( d ))
  				$P.layout().resizeAll();
  			else if ($C && $C.data( d ))
  				$C.layout().resizeAll();
  		}
  	}
  
  
  	/**
  	* IF pane has a content-div, then resize all elements inside pane to fit pane-height
  	*
  	* @param {string=}		panes		The pane(s) being resized
  	* @param {boolean=}	remeasure	Should the content (header/footer) be remeasured?
  	*/
  ,	sizeContent = function (panes, remeasure) {
  		if (!isInitialized()) return;
  		if (!panes || panes == "all") panes = _c.allPanes;
  		$.each(panes.split(","), function (idx, pane) {
  			var
  				$P	= $Ps[pane]
  			,	$C	= $Cs[pane]
  			,	o	= options[pane]
  			,	s	= state[pane]
  			,	m	= s.content // m = measurements
  			;
  			if (!$P || !$C || !$P.is(":visible")) return true; // NOT VISIBLE - skip
  
  			// onsizecontent_start will CANCEL resizing if returns false
  			if (false === _execCallback(null, o.onsizecontent_start)) return;
  
  			// skip re-measuring offsets if live-resizing
  			if (!_c.isLayoutBusy || m.top == undefined || remeasure || o.resizeContentWhileDragging) {
  				_measure();
  				// if any footers are below pane-bottom, they may not measure correctly,
  				// so allow pane overflow and re-measure
  				if (m.hiddenFooters > 0 && $P.css("overflow") == "hidden") {
  					$P.css("overflow", "visible");
  					_measure(); // remeasure while overflowing
  					$P.css("overflow", "hidden");
  				}
  			}
  			// NOTE: spaceAbove/Below *includes* the pane paddingTop/Bottom, but not pane.borders
  			var newH = s.innerHeight - (m.spaceAbove - s.css.paddingTop) - (m.spaceBelow - s.css.paddingBottom);
  			if (!$C.is(":visible") || m.height != newH) {
  				// size the Content element to fit new pane-size - will autoHide if not enough room
  				setOuterHeight($C, newH, true); // true=autoHide
  				m.height = newH; // save new height
  			};
  
  			if (state.initialized) {
  				_execCallback(pane, o.onsizecontent_end || o.onsizecontent);
  				resizeNestedLayout(pane);
  			}
  
  
  			function _below ($E) {
  				return max(s.css.paddingBottom, (parseInt($E.css("marginBottom"), 10) || 0));
  			};
  
  			function _measure () {
  				var
  					ignore	= options[pane].contentIgnoreSelector
  				,	$Fs		= $C.nextAll().not(ignore || ':lt(0)') // not :lt(0) = ALL
  				,	$Fs_vis	= $Fs.filter(':visible')
  				,	$F		= $Fs_vis.filter(':last')
  				;
  				m = {
  					top:			$C[0].offsetTop
  				,	height:			$C.outerHeight()
  				,	numFooters:		$Fs.length
  				,	hiddenFooters:	$Fs.length - $Fs_vis.length
  				,	spaceBelow:		0 // correct if no content footer ($E)
  				}
  					m.spaceAbove	= m.top; // just for state - not used in calc
  					m.bottom		= m.top + m.height;
  				if ($F.length)
  					//spaceBelow = (LastFooter.top + LastFooter.height) [footerBottom] - Content.bottom + max(LastFooter.marginBottom, pane.paddingBotom)
  					m.spaceBelow = ($F[0].offsetTop + $F.outerHeight()) - m.bottom + _below($F);
  				else // no footer - check marginBottom on Content element itself
  					m.spaceBelow = _below($C);
  			};
  		});
  	}
  
  
  	/**
  	* Called every time a pane is opened, closed, or resized to slide the togglers to 'center' and adjust their length if necessary
  	*
  	* @see  initHandles(), open(), close(), resizeAll()
  	* @param {string=}		panes		The pane(s) being resized
  	*/
  ,	sizeHandles = function (panes) {
  		if (!panes || panes == "all") panes = _c.borderPanes;
  
  		$.each(panes.split(","), function (i, pane) {
  			var 
  				o	= options[pane]
  			,	s	= state[pane]
  			,	$P	= $Ps[pane]
  			,	$R	= $Rs[pane]
  			,	$T	= $Ts[pane]
  			,	$TC
  			;
  			if (!$P || !$R) return;
  
  			var
  				dir			= _c[pane].dir
  			,	_state		= (s.isClosed ? "_closed" : "_open")
  			,	spacing		= o["spacing"+ _state]
  			,	togAlign	= o["togglerAlign"+ _state]
  			,	togLen		= o["togglerLength"+ _state]
  			,	paneLen
  			,	offset
  			,	CSS = {}
  			;
  
  			if (spacing == 0) {
  				$R.hide();
  				return;
  			}
  			else if (!s.noRoom && !s.isHidden) // skip if resizer was hidden for any reason
  				$R.show(); // in case was previously hidden
  
  			// Resizer Bar is ALWAYS same width/height of pane it is attached to
  			if (dir == "horz") { // north/south
  				paneLen = $P.outerWidth(); // s.outerWidth || 
  				s.resizerLength = paneLen;
  				$R.css({
  					width:	max(1, cssW($R, paneLen)) // account for borders & padding
  				,	height:	max(0, cssH($R, spacing)) // ditto
  				,	left:	$.layout.cssNum($P, "left")
  				});
  			}
  			else { // east/west
  				paneLen = $P.outerHeight(); // s.outerHeight || 
  				s.resizerLength = paneLen;
  				$R.css({
  					height:	max(1, cssH($R, paneLen)) // account for borders & padding
  				,	width:	max(0, cssW($R, spacing)) // ditto
  				,	top:	sC.insetTop + getPaneSize("north", true) // TODO: what if no North pane?
  				//,	top:	$.layout.cssNum($Ps["center"], "top")
  				});
  			}
  
  			// remove hover classes
  			removeHover( o, $R );
  
  			if ($T) {
  				if (togLen == 0 || (s.isSliding && o.hideTogglerOnSlide)) {
  					$T.hide(); // always HIDE the toggler when 'sliding'
  					return;
  				}
  				else
  					$T.show(); // in case was previously hidden
  
  				if (!(togLen > 0) || togLen == "100%" || togLen > paneLen) {
  					togLen = paneLen;
  					offset = 0;
  				}
  				else { // calculate 'offset' based on options.PANE.togglerAlign_open/closed
  					if (isStr(togAlign)) {
  						switch (togAlign) {
  							case "top":
  							case "left":	offset = 0;
  											break;
  							case "bottom":
  							case "right":	offset = paneLen - togLen;
  											break;
  							case "middle":
  							case "center":
  							default:		offset = Math.floor((paneLen - togLen) / 2); // 'default' catches typos
  						}
  					}
  					else { // togAlign = number
  						var x = parseInt(togAlign, 10); //
  						if (togAlign >= 0) offset = x;
  						else offset = paneLen - togLen + x; // NOTE: x is negative!
  					}
  				}
  
  				if (dir == "horz") { // north/south
  					var width = cssW($T, togLen);
  					$T.css({
  						width:	max(0, width)  // account for borders & padding
  					,	height:	max(1, cssH($T, spacing)) // ditto
  					,	left:	offset // TODO: VERIFY that toggler  positions correctly for ALL values
  					,	top:	0
  					});
  					// CENTER the toggler content SPAN
  					$T.children(".content").each(function(){
  						$TC = $(this);
  						$TC.css("marginLeft", Math.floor((width-$TC.outerWidth())/2)); // could be negative
  					});
  				}
  				else { // east/west
  					var height = cssH($T, togLen);
  					$T.css({
  						height:	max(0, height)  // account for borders & padding
  					,	width:	max(1, cssW($T, spacing)) // ditto
  					,	top:	offset // POSITION the toggler
  					,	left:	0
  					});
  					// CENTER the toggler content SPAN
  					$T.children(".content").each(function(){
  						$TC = $(this);
  						$TC.css("marginTop", Math.floor((height-$TC.outerHeight())/2)); // could be negative
  					});
  				}
  
  				// remove ALL hover classes
  				removeHover( 0, $T );
  			}
  
  			// DONE measuring and sizing this resizer/toggler, so can be 'hidden' now
  			if (!state.initialized && (o.initHidden || s.noRoom)) {
  				$R.hide();
  				if ($T) $T.hide();
  			}
  		});
  	}
  
  
  ,	enableClosable = function (pane) {
  		if (!isInitialized()) return;
  		var $T = $Ts[pane], o = options[pane];
  		if (!$T) return;
  		o.closable = true;
  		$T	.bind("click."+ sID, function(evt){ evt.stopPropagation(); toggle(pane); })
  			.bind("mouseenter."+ sID, addHover)
  			.bind("mouseleave."+ sID, removeHover)
  			.css("visibility", "visible")
  			.css("cursor", "pointer")
  			.attr("title", state[pane].isClosed ? o.togglerTip_closed : o.togglerTip_open) // may be blank
  			.show()
  		;
  	}
  
  ,	disableClosable = function (pane, hide) {
  		if (!isInitialized()) return;
  		var $T = $Ts[pane];
  		if (!$T) return;
  		options[pane].closable = false;
  		// is closable is disable, then pane MUST be open!
  		if (state[pane].isClosed) open(pane, false, true);
  		$T	.unbind("."+ sID)
  			.css("visibility", hide ? "hidden" : "visible") // instead of hide(), which creates logic issues
  			.css("cursor", "default")
  			.attr("title", "")
  		;
  	}
  
  
  ,	enableSlidable = function (pane) {
  		if (!isInitialized()) return;
  		var $R = $Rs[pane], o = options[pane];
  		if (!$R || !$R.data('draggable')) return;
  		options[pane].slidable = true; 
  		if (s.isClosed)
  			bindStartSlidingEvent(pane, true);
  	}
  
  ,	disableSlidable = function (pane) {
  		if (!isInitialized()) return;
  		var $R = $Rs[pane];
  		if (!$R) return;
  		options[pane].slidable = false; 
  		if (state[pane].isSliding)
  			close(pane, false, true);
  		else {
  			bindStartSlidingEvent(pane, false);
  			$R	.css("cursor", "default")
  				.attr("title", "")
  			;
  			removeHover(null, $R[0]); // in case currently hovered
  		}
  	}
  
  
  ,	enableResizable = function (pane) {
  		if (!isInitialized()) return;
  		var $R = $Rs[pane], o = options[pane];
  		if (!$R || !$R.data('draggable')) return;
  		o.resizable = true; 
  		$R	.draggable("enable")
  			.bind("mouseenter."+ sID, onResizerEnter)
  			.bind("mouseleave."+ sID, onResizerLeave)
  		;
  		if (!state[pane].isClosed)
  			$R	.css("cursor", o.resizerCursor)
  			 	.attr("title", o.resizerTip)
  			;
  	}
  
  ,	disableResizable = function (pane) {
  		if (!isInitialized()) return;
  		var $R = $Rs[pane];
  		if (!$R || !$R.data('draggable')) return;
  		options[pane].resizable = false; 
  		$R	.draggable("disable")
  			.unbind("."+ sID)
  			.css("cursor", "default")
  			.attr("title", "")
  		;
  		removeHover(null, $R[0]); // in case currently hovered
  	}
  
  
  	/**
  	* Move a pane from source-side (eg, west) to target-side (eg, east)
  	* If pane exists on target-side, move that to source-side, ie, 'swap' the panes
  	*
  	* @param {string}	pane1		The pane/edge being swapped
  	* @param {string}	pane2		ditto
  	*/
  ,	swapPanes = function (pane1, pane2) {
  		if (!isInitialized()) return;
  		// change state.edge NOW so callbacks can know where pane is headed...
  		state[pane1].edge = pane2;
  		state[pane2].edge = pane1;
  		// run these even if NOT state.initialized
  		var cancelled = false;
  		if (false === _execCallback(pane1, options[pane1].onswap_start)) cancelled = true;
  		if (!cancelled && false === _execCallback(pane2, options[pane2].onswap_start)) cancelled = true;
  		if (cancelled) {
  			state[pane1].edge = pane1; // reset
  			state[pane2].edge = pane2;
  			return;
  		}
  
  		var
  			oPane1	= copy( pane1 )
  		,	oPane2	= copy( pane2 )
  		,	sizes	= {}
  		;
  		sizes[pane1] = oPane1 ? oPane1.state.size : 0;
  		sizes[pane2] = oPane2 ? oPane2.state.size : 0;
  
  		// clear pointers & state
  		$Ps[pane1] = false; 
  		$Ps[pane2] = false;
  		state[pane1] = {};
  		state[pane2] = {};
  		
  		// ALWAYS remove the resizer & toggler elements
  		if ($Ts[pane1]) $Ts[pane1].remove();
  		if ($Ts[pane2]) $Ts[pane2].remove();
  		if ($Rs[pane1]) $Rs[pane1].remove();
  		if ($Rs[pane2]) $Rs[pane2].remove();
  		$Rs[pane1] = $Rs[pane2] = $Ts[pane1] = $Ts[pane2] = false;
  
  		// transfer element pointers and data to NEW Layout keys
  		move( oPane1, pane2 );
  		move( oPane2, pane1 );
  
  		// cleanup objects
  		oPane1 = oPane2 = sizes = null;
  
  		// make panes 'visible' again
  		if ($Ps[pane1]) $Ps[pane1].css(_c.visible);
  		if ($Ps[pane2]) $Ps[pane2].css(_c.visible);
  
  		// fix any size discrepancies caused by swap
  		resizeAll();
  
  		// run these even if NOT state.initialized
  		_execCallback(pane1, options[pane1].onswap_end || options[pane1].onswap);
  		_execCallback(pane2, options[pane2].onswap_end || options[pane2].onswap);
  
  		return;
  
  		function copy (n) { // n = pane
  			var
  				$P	= $Ps[n]
  			,	$C	= $Cs[n]
  			;
  			return !$P ? false : {
  				pane:		n
  			,	P:			$P ? $P[0] : false
  			,	C:			$C ? $C[0] : false
  			,	state:		$.extend({}, state[n])
  			,	options:	$.extend({}, options[n])
  			}
  		};
  
  		function move (oPane, pane) {
  			if (!oPane) return;
  			var
  				P		= oPane.P
  			,	C		= oPane.C
  			,	oldPane = oPane.pane
  			,	c		= _c[pane]
  			,	side	= c.side.toLowerCase()
  			,	inset	= "inset"+ c.side
  			//	save pane-options that should be retained
  			,	s		= $.extend({}, state[pane])
  			,	o		= options[pane]
  			//	RETAIN side-specific FX Settings - more below
  			,	fx		= { resizerCursor: o.resizerCursor }
  			,	re, size, pos
  			;
  			$.each("fxName,fxSpeed,fxSettings".split(","), function (i, k) {
  				fx[k] = o[k];
  				fx[k +"_open"]  = o[k +"_open"];
  				fx[k +"_close"] = o[k +"_close"];
  			});
  
  			// update object pointers and attributes
  			$Ps[pane] = $(P)
  				.data("layoutEdge", pane)
  				.css(_c.hidden)
  				.css(c.cssReq)
  			;
  			$Cs[pane] = C ? $(C) : false;
  
  			// set options and state
  			options[pane]	= $.extend({}, oPane.options, fx);
  			state[pane]		= $.extend({}, oPane.state);
  
  			// change classNames on the pane, eg: ui-layout-pane-east ==> ui-layout-pane-west
  			re = new RegExp(o.paneClass +"-"+ oldPane, "g");
  			P.className = P.className.replace(re, o.paneClass +"-"+ pane);
  
  			// ALWAYS regenerate the resizer & toggler elements
  			initHandles(pane); // create the required resizer & toggler
  
  			// if moving to different orientation, then keep 'target' pane size
  			if (c.dir != _c[oldPane].dir) {
  				size = sizes[pane] || 0;
  				setSizeLimits(pane); // update pane-state
  				size = max(size, state[pane].minSize);
  				// use manualSizePane to disable autoResize - not useful after panes are swapped
  				manualSizePane(pane, size, true); // true = skipCallback
  			}
  			else // move the resizer here
  				$Rs[pane].css(side, sC[inset] + (state[pane].isVisible ? getPaneSize(pane) : 0));
  
  
  			// ADD CLASSNAMES & SLIDE-BINDINGS
  			if (oPane.state.isVisible && !s.isVisible)
  				setAsOpen(pane, true); // true = skipCallback
  			else {
  				setAsClosed(pane);
  				bindStartSlidingEvent(pane, true); // will enable events IF option is set
  			}
  
  			// DESTROY the object
  			oPane = null;
  		};
  	}
  
  
  ;	// END var DECLARATIONS
  
  	/**
  	* Capture keys when enableCursorHotkey - toggle pane if hotkey pressed
  	*
  	* @see  document.keydown()
  	*/
  	function keyDown (evt) {
  		if (!evt) return true;
  		var code = evt.keyCode;
  		if (code < 33) return true; // ignore special keys: ENTER, TAB, etc
  
  		var
  			PANE = {
  				38: "north" // Up Cursor	- $.ui.keyCode.UP
  			,	40: "south" // Down Cursor	- $.ui.keyCode.DOWN
  			,	37: "west"  // Left Cursor	- $.ui.keyCode.LEFT
  			,	39: "east"  // Right Cursor	- $.ui.keyCode.RIGHT
  			}
  		,	ALT		= evt.altKey // no worky!
  		,	SHIFT	= evt.shiftKey
  		,	CTRL	= evt.ctrlKey
  		,	CURSOR	= (CTRL && code >= 37 && code <= 40)
  		,	o, k, m, pane
  		;
  
  		if (CURSOR && options[PANE[code]].enableCursorHotkey) // valid cursor-hotkey
  			pane = PANE[code];
  		else if (CTRL || SHIFT) // check to see if this matches a custom-hotkey
  			$.each(_c.borderPanes.split(","), function (i, p) { // loop each pane to check its hotkey
  				o = options[p];
  				k = o.customHotkey;
  				m = o.customHotkeyModifier; // if missing or invalid, treated as "CTRL+SHIFT"
  				if ((SHIFT && m=="SHIFT") || (CTRL && m=="CTRL") || (CTRL && SHIFT)) { // Modifier matches
  					if (k && code == (isNaN(k) || k <= 9 ? k.toUpperCase().charCodeAt(0) : k)) { // Key matches
  						pane = p;
  						return false; // BREAK
  					}
  				}
  			});
  
  		// validate pane
  		if (!pane || !$Ps[pane] || !options[pane].closable || state[pane].isHidden)
  			return true;
  
  		toggle(pane);
  
  		evt.stopPropagation();
  		evt.returnValue = false; // CANCEL key
  		return false;
  	};
  
  
  /*
   * ######################################
   *	UTILITY METHODS
   *	called externally or by initButtons
   * ######################################
   */
  
  	/**
  	* Change/reset a pane overflow setting & zIndex to allow popups/drop-downs to work
  	*
  	* @param {Object=}   el		(optional) Can also be 'bound' to a click, mouseOver, or other event
  	*/
  	function allowOverflow (el) {
  		if (!isInitialized()) return;
  		if (this && this.tagName) el = this; // BOUND to element
  		var $P;
  		if (isStr(el))
  			$P = $Ps[el];
  		else if ($(el).data("layoutRole"))
  			$P = $(el);
  		else
  			$(el).parents().each(function(){
  				if ($(this).data("layoutRole")) {
  					$P = $(this);
  					return false; // BREAK
  				}
  			});
  		if (!$P || !$P.length) return; // INVALID
  
  		var
  			pane	= $P.data("layoutEdge")
  		,	s		= state[pane]
  		;
  
  		// if pane is already raised, then reset it before doing it again!
  		// this would happen if allowOverflow is attached to BOTH the pane and an element 
  		if (s.cssSaved)
  			resetOverflow(pane); // reset previous CSS before continuing
  
  		// if pane is raised by sliding or resizing, or its closed, then abort
  		if (s.isSliding || s.isResizing || s.isClosed) {
  			s.cssSaved = false;
  			return;
  		}
  
  		var
  			newCSS	= { zIndex: (_c.zIndex.pane_normal + 2) }
  		,	curCSS	= {}
  		,	of		= $P.css("overflow")
  		,	ofX		= $P.css("overflowX")
  		,	ofY		= $P.css("overflowY")
  		;
  		// determine which, if any, overflow settings need to be changed
  		if (of != "visible") {
  			curCSS.overflow = of;
  			newCSS.overflow = "visible";
  		}
  		if (ofX && !ofX.match(/visible|auto/)) {
  			curCSS.overflowX = ofX;
  			newCSS.overflowX = "visible";
  		}
  		if (ofY && !ofY.match(/visible|auto/)) {
  			curCSS.overflowY = ofX;
  			newCSS.overflowY = "visible";
  		}
  
  		// save the current overflow settings - even if blank!
  		s.cssSaved = curCSS;
  
  		// apply new CSS to raise zIndex and, if necessary, make overflow 'visible'
  		$P.css( newCSS );
  
  		// make sure the zIndex of all other panes is normal
  		$.each(_c.allPanes.split(","), function(i, p) {
  			if (p != pane) resetOverflow(p);
  		});
  
  	};
  
  	function resetOverflow (el) {
  		if (!isInitialized()) return;
  		if (this && this.tagName) el = this; // BOUND to element
  		var $P;
  		if (isStr(el))
  			$P = $Ps[el];
  		else if ($(el).data("layoutRole"))
  			$P = $(el);
  		else
  			$(el).parents().each(function(){
  				if ($(this).data("layoutRole")) {
  					$P = $(this);
  					return false; // BREAK
  				}
  			});
  		if (!$P || !$P.length) return; // INVALID
  
  		var
  			pane	= $P.data("layoutEdge")
  		,	s		= state[pane]
  		,	CSS		= s.cssSaved || {}
  		;
  		// reset the zIndex
  		if (!s.isSliding && !s.isResizing)
  			$P.css("zIndex", _c.zIndex.pane_normal);
  
  		// reset Overflow - if necessary
  		$P.css( CSS );
  
  		// clear var
  		s.cssSaved = false;
  	};
  
  
  	/**
  	* Helper function to validate params received by addButton utilities
  	*
  	* Two classes are added to the element, based on the buttonClass...
  	* The type of button is appended to create the 2nd className:
  	*  - ui-layout-button-pin
  	*  - ui-layout-pane-button-toggle
  	*  - ui-layout-pane-button-open
  	*  - ui-layout-pane-button-close
  	*
  	* @param  {(string|!Object)}	selector	jQuery selector (or element) for button, eg: ".ui-layout-north .toggle-button"
  	* @param  {string}   			pane 		Name of the pane the button is for: 'north', 'south', etc.
  	* @return {Array.<Object>}		If both params valid, the element matching 'selector' in a jQuery wrapper - otherwise returns null
  	*/
  	function getBtn (selector, pane, action) {
  		var $E	= $(selector)
  		,	err	= options.showErrorMessages;
  		if (!$E.length) { // element not found
  			if (err) alert(lang.errButton + lang.selector +": "+ selector);
  		}
  		else if (_c.borderPanes.indexOf(pane) == -1) { // invalid 'pane' sepecified
  			if (err) alert(lang.errButton + lang.pane +": "+ pane);
  		}
  		else { // VALID
  			var btn = options[pane].buttonClass +"-"+ action;
  			$E
  				.addClass( btn +" "+ btn +"-"+ pane )
  				.data("layoutName", options.name) // add layout identifier - even if blank!
  			;
  			return $E;
  		}
  		return null;  // INVALID
  	};
  
  
  	/**
  	* NEW syntax for binding layout-buttons - will eventually replace addToggleBtn, addOpenBtn, etc.
  	*
  	* @param {(string|!Object)}	selector	jQuery selector (or element) for button, eg: ".ui-layout-north .toggle-button"
  	* @param {string}			action
  	* @param {string}			pane
  	*/
  	function bindButton (selector, action, pane) {
  		switch (action.toLowerCase()) {
  			case "toggle":			addToggleBtn(selector, pane);		break;	
  			case "open":			addOpenBtn(selector, pane);			break;
  			case "close":			addCloseBtn(selector, pane);		break;
  			case "pin":				addPinBtn(selector, pane);			break;
  			case "toggle-slide":	addToggleBtn(selector, pane, true);	break;	
  			case "open-slide":		addOpenBtn(selector, pane, true);	break;
  		}
  	};
  
  	/**
  	* Add a custom Toggler button for a pane
  	*
  	* @param {(string|!Object)}	selector	jQuery selector (or element) for button, eg: ".ui-layout-north .toggle-button"
  	* @param {string}  			pane 		Name of the pane the button is for: 'north', 'south', etc.
  	* @param {boolean=}			slide 		true = slide-open, false = pin-open
  	*/
  	function addToggleBtn (selector, pane, slide) {
  		var $E = getBtn(selector, pane, "toggle");
  		if ($E)
  			$E.click(function (evt) {
  				toggle(pane, !!slide);
  				evt.stopPropagation();
  			});
  	};
  
  	/**
  	* Add a custom Open button for a pane
  	*
  	* @param {(string|!Object)}	selector	jQuery selector (or element) for button, eg: ".ui-layout-north .toggle-button"
  	* @param {string}			pane 		Name of the pane the button is for: 'north', 'south', etc.
  	* @param {boolean=}			slide 		true = slide-open, false = pin-open
  	*/
  	function addOpenBtn (selector, pane, slide) {
  		var $E = getBtn(selector, pane, "open");
  		if ($E)
  			$E
  				.attr("title", lang.Open)
  				.click(function (evt) {
  					open(pane, !!slide);
  					evt.stopPropagation();
  				})
  			;
  	};
  
  	/**
  	* Add a custom Close button for a pane
  	*
  	* @param {(string|!Object)}	selector	jQuery selector (or element) for button, eg: ".ui-layout-north .toggle-button"
  	* @param {string}   		pane 		Name of the pane the button is for: 'north', 'south', etc.
  	*/
  	function addCloseBtn (selector, pane) {
  		var $E = getBtn(selector, pane, "close");
  		if ($E)
  			$E
  				.attr("title", lang.Close)
  				.click(function (evt) {
  					close(pane);
  					evt.stopPropagation();
  				})
  			;
  	};
  
  	/**
  	* addPinBtn
  	*
  	* Add a custom Pin button for a pane
  	*
  	* Four classes are added to the element, based on the paneClass for the associated pane...
  	* Assuming the default paneClass and the pin is 'up', these classes are added for a west-pane pin:
  	*  - ui-layout-pane-pin
  	*  - ui-layout-pane-west-pin
  	*  - ui-layout-pane-pin-up
  	*  - ui-layout-pane-west-pin-up
  	*
  	* @param {(string|!Object)}	selector	jQuery selector (or element) for button, eg: ".ui-layout-north .toggle-button"
  	* @param {string}   		pane 		Name of the pane the pin is for: 'north', 'south', etc.
  	*/
  	function addPinBtn (selector, pane) {
  		var $E = getBtn(selector, pane, "pin");
  		if ($E) {
  			var s = state[pane];
  			$E.click(function (evt) {
  				setPinState($(this), pane, (s.isSliding || s.isClosed));
  				if (s.isSliding || s.isClosed) open( pane ); // change from sliding to open
  				else close( pane ); // slide-closed
  				evt.stopPropagation();
  			});
  			// add up/down pin attributes and classes
  			setPinState($E, pane, (!s.isClosed && !s.isSliding));
  			// add this pin to the pane data so we can 'sync it' automatically
  			// PANE.pins key is an array so we can store multiple pins for each pane
  			_c[pane].pins.push( selector ); // just save the selector string
  		}
  	};
  
  	/**
  	* INTERNAL function to sync 'pin buttons' when pane is opened or closed
  	* Unpinned means the pane is 'sliding' - ie, over-top of the adjacent panes
  	*
  	* @see  open(), close()
  	* @param {string}	pane   These are the params returned to callbacks by layout()
  	* @param {boolean}	doPin  True means set the pin 'down', False means 'up'
  	*/
  	function syncPinBtns (pane, doPin) {
  		$.each(_c[pane].pins, function (i, selector) {
  			setPinState($(selector), pane, doPin);
  		});
  	};
  
  	/**
  	* Change the class of the pin button to make it look 'up' or 'down'
  	*
  	* @see  addPinBtn(), syncPinBtns()
  	* @param {Array.<Object>}	$Pin	The pin-span element in a jQuery wrapper
  	* @param {string}	pane	These are the params returned to callbacks by layout()
  	* @param {boolean}	doPin	true = set the pin 'down', false = set it 'up'
  	*/
  	function setPinState ($Pin, pane, doPin) {
  		var updown = $Pin.attr("pin");
  		if (updown && doPin == (updown=="down")) return; // already in correct state
  		var
  			pin		= options[pane].buttonClass +"-pin"
  		,	side	= pin +"-"+ pane
  		,	UP		= pin +"-up "+	side +"-up"
  		,	DN		= pin +"-down "+side +"-down"
  		;
  		$Pin
  			.attr("pin", doPin ? "down" : "up") // logic
  			.attr("title", doPin ? lang.Unpin : lang.Pin)
  			.removeClass( doPin ? UP : DN ) 
  			.addClass( doPin ? DN : UP ) 
  		;
  	};
  
  
  	/*
  	* LAYOUT STATE MANAGEMENT
  	*
  	* @example .layout({ cookie: { name: "myLayout", keys: "west.isClosed,east.isClosed" } })
  	* @example .layout({ cookie__name: "myLayout", cookie__keys: "west.isClosed,east.isClosed" })
  	* @example myLayout.getState( "west.isClosed,north.size,south.isHidden" );
  	* @example myLayout.saveCookie( "west.isClosed,north.size,south.isHidden", {expires: 7} );
  	* @example myLayout.deleteCookie();
  	* @example myLayout.loadCookie();
  	* @example var hSaved = myLayout.state.cookie;
  	*/
  
  	function isCookiesEnabled () {
  		// TODO: is the cookieEnabled property common enough to be useful???
  		return (navigator.cookieEnabled != 0);
  	};
  	
  	/**
  	* Read & return data from the cookie - as JSON
  	*
  	* @param {Object=}	opts
  	*/
  	function getCookie (opts) {
  		var
  			o		= $.extend( {}, options.cookie, opts || {} )
  		,	name	= o.name || options.name || "Layout"
  		,	c		= document.cookie
  		,	cs		= c ? c.split(';') : []
  		,	pair	// loop var
  		;
  		for (var i=0, n=cs.length; i < n; i++) {
  			pair = $.trim(cs[i]).split('='); // name=value pair
  			if (pair[0] == name) // found the layout cookie
  				// convert cookie string back to a hash
  				return decodeJSON( decodeURIComponent(pair[1]) );
  		}
  		return "";
  	};
  
  	/**
  	* Get the current layout state and save it to a cookie
  	*
  	* @param {(string|Array)=}	keys
  	* @param {Object=}	opts
  	*/
  	function saveCookie (keys, opts) {
  		var
  			o		= $.extend( {}, options.cookie, opts || {} )
  		,	name	= o.name || options.name || "Layout"
  		,	params	= ''
  		,	date	= ''
  		,	clear	= false
  		;
  		if (o.expires.toUTCString)
  			date = o.expires;
  		else if (typeof o.expires == 'number') {
  			date = new Date();
  			if (o.expires > 0)
  				date.setDate(date.getDate() + o.expires);
  			else {
  				date.setYear(1970);
  				clear = true;
  			}
  		}
  		if (date)		params += ';expires='+ date.toUTCString();
  		if (o.path)		params += ';path='+ o.path;
  		if (o.domain)	params += ';domain='+ o.domain;
  		if (o.secure)	params += ';secure';
  
  		if (clear) {
  			state.cookie = {}; // clear data
  			document.cookie = name +'='+ params; // expire the cookie
  		}
  		else {
  			state.cookie = getState(keys || o.keys); // read current panes-state
  			document.cookie = name +'='+ encodeURIComponent( encodeJSON(state.cookie) ) + params; // write cookie
  		}
  
  		return $.extend({}, state.cookie); // return COPY of state.cookie
  	};
  
  	/**
  	* Remove the state cookie
  	*/
  	function deleteCookie () {
  		saveCookie('', { expires: -1 });
  	};
  
  	/**
  	* Get data from the cookie and USE IT to loadState
  	*
  	* @param {Object=}	opts
  	*/
  	function loadCookie (opts) {
  		var o = getCookie(opts); // READ the cookie
  		if (o) {
  			state.cookie = $.extend({}, o); // SET state.cookie
  			loadState(o);	// LOAD the retrieved state
  		}
  		return o;
  	};
  
  	/**
  	* Update layout options from the cookie, if one exists
  	*
  	* @param {Object=}	opts
  	* @param {boolean=}	animate
  	*/
  	function loadState (opts, animate) {
  		opts = _transformData(opts);
  		$.extend( true, options, opts ); // update layout options
  		// if layout has already been initialized, then UPDATE layout state
  		if (state.initialized) {
  			var pane, o, s, h, c, a = !animate;
  			$.each(_c.allPanes.split(","), function (idx, pane) {
  				o = opts[ pane ];
  				if (typeof o != 'object') return; // no key, continue
  				s = o.size;
  				c = o.initClosed;
  				h = o.initHidden;
  				if (s > 0 || s=="auto") sizePane(pane, s);
  				if (h === true)			hide(pane, a);
  				else if (c === false)	open(pane, false, a );
  				else if (c === true)	close(pane, false, a);
  				else if (h === false)	show(pane, false, a);
  			});
  		}
  	};
  
  	/**
  	* Get the *current layout state* and return it as a hash
  	*
  	* @param {(string|Array)=}	keys
  	*/
  	function getState (keys) {
  		var
  			data	= {}
  		,	alt		= { isClosed: 'initClosed', isHidden: 'initHidden' }
  		,	pair, pane, key, val
  		;
  		if (!keys) keys = options.cookie.keys; // if called by user
  		if ($.isArray(keys)) keys = keys.join(",");
  		// convert keys to an array and change delimiters from '__' to '.'
  		keys = keys.replace(/__/g, ".").split(',');
  		// loop keys and create a data hash
  		for (var i=0,n=keys.length; i < n; i++) {
  			pair = keys[i].split(".");
  			pane = pair[0];
  			key  = pair[1];
  			if (_c.allPanes.indexOf(pane) < 0) continue; // bad pane!
  			val = state[ pane ][ key ];
  			if (val == undefined) continue;
  			if (key=="isClosed" && state[pane]["isSliding"])
  				val = true; // if sliding, then *really* isClosed
  			( data[pane] || (data[pane]={}) )[ alt[key] ? alt[key] : key ] = val;
  		}
  		return data;
  	};
  
  	/**
  	* Stringify a JSON hash so can save in a cookie or db-field
  	*/
  	function encodeJSON (JSON) {
  		return parse( JSON );
  		function parse (h) {
  			var D=[], i=0, k, v, t; // k = key, v = value
  			for (k in h) {
  				v = h[k];
  				t = typeof v;
  				if (t == 'string')		// STRING - add quotes
  					v = '"'+ v +'"';
  				else if (t == 'object')	// SUB-KEY - recurse into it
  					v = parse(v);
  				D[i++] = '"'+ k +'":'+ v;
  			}
  			return "{"+ D.join(",") +"}";
  		};
  	};
  
  	/**
  	* Convert stringified JSON back to a hash object
  	*/
  	function decodeJSON (str) {
  		try { return window["eval"]("("+ str +")") || {}; }
  		catch (e) { return {}; }
  	};
  
  
  /*
   * #####################
   * CREATE/RETURN LAYOUT
   * #####################
   */
  
  	// validate that container exists
  	var $N = $(this).eq(0); // FIRST matching Container element
  	if (!$N.length) {
  		if (options.showErrorMessages)
  			alert( lang.errContainerMissing );
  		return null;
  	};
  
  	// Users retreive Instance of a layout with: $N.layout() OR $N.data("layout")
  	// return the Instance-pointer if layout has already been initialized
  	if ($N.data("layoutContainer") && $N.data("layout"))
  		return $N.data("layout"); // cached pointer
  
  	// init global vars
  	var 
  		$Ps	= {} // Panes x5	- set in initPanes()
  	,	$Cs	= {} // Content x5	- set in initPanes()
  	,	$Rs	= {} // Resizers x4	- set in initHandles()
  	,	$Ts	= {} // Togglers x4	- set in initHandles()
  	//	aliases for code brevity
  	,	sC	= state.container // alias for easy access to 'container dimensions'
  	,	sID	= state.id // alias for unique layout ID/namespace - eg: "layout435"
  	;
  
  	// create Instance object to expose data & option Properties, and primary action Methods
  	var Instance = {
  		options:		options			// property - options hash
  	,	state:			state			// property - dimensions hash
  	,	container:		$N				// property - object pointers for layout container
  	,	panes:			$Ps				// property - object pointers for ALL Panes: panes.north, panes.center
  	,	contents:		$Cs				// property - object pointers for ALL Content: content.north, content.center
  	,	resizers:		$Rs				// property - object pointers for ALL Resizers, eg: resizers.north
  	,	togglers:		$Ts				// property - object pointers for ALL Togglers, eg: togglers.north
  	,	toggle:			toggle			// method - pass a 'pane' ("north", "west", etc)
  	,	hide:			hide			// method - ditto
  	,	show:			show			// method - ditto
  	,	open:			open			// method - ditto
  	,	close:			close			// method - ditto
  	,	slideOpen:		slideOpen		// method - ditto
  	,	slideClose:		slideClose		// method - ditto
  	,	slideToggle:	slideToggle		// method - ditto
  	,	initContent:	initContent		// method - ditto
  	,	sizeContent:	sizeContent		// method - ditto
  	,	sizePane:		manualSizePane	// method - pass a 'pane' AND an 'outer-size' in pixels or percent, or 'auto'
  	,	swapPanes:		swapPanes		// method - pass TWO 'panes' - will swap them
  	,	resizeAll:		resizeAll		// method - no parameters
  	,	initPanes:		isInitialized	// method - no parameters
  	,	destroy:		destroy			// method - no parameters
  	,	addPane:		addPane			// method - pass a 'pane'
  	,	removePane:		removePane		// method - pass a 'pane' to remove from layout, add 'true' to delete the pane-elem
  	,	setSizeLimits:	setSizeLimits	// method - pass a 'pane' - update state min/max data
  	,	bindButton:		bindButton		// utility - pass element selector, 'action' and 'pane' (E, "toggle", "west")
  	,	addToggleBtn:	addToggleBtn	// utility - pass element selector and 'pane' (E, "west")
  	,	addOpenBtn:		addOpenBtn		// utility - ditto
  	,	addCloseBtn:	addCloseBtn		// utility - ditto
  	,	addPinBtn:		addPinBtn		// utility - ditto
  	,	allowOverflow:	allowOverflow	// utility - pass calling element (this)
  	,	resetOverflow:	resetOverflow	// utility - ditto
  	,	encodeJSON:		encodeJSON		// method - pass a JSON object
  	,	decodeJSON:		decodeJSON		// method - pass a string of encoded JSON
  	,	getState:		getState		// method - returns hash of current layout-state
  	,	getCookie:		getCookie		// method - update options from cookie - returns hash of cookie data
  	,	saveCookie:		saveCookie		// method - optionally pass keys-list and cookie-options (hash)
  	,	deleteCookie:	deleteCookie	// method
  	,	loadCookie:		loadCookie		// method - update options from cookie - returns hash of cookie data
  	,	loadState:		loadState		// method - pass a hash of state to use to update options
  	,	cssWidth:		cssW			// utility - pass element and target outerWidth
  	,	cssHeight:		cssH			// utility - ditto
  	,	enableClosable: enableClosable
  	,	disableClosable: disableClosable
  	,	enableSlidable: enableSlidable
  	,	disableSlidable: disableSlidable
  	,	enableResizable: enableResizable
  	,	disableResizable: disableResizable
  	};
  
  	// create the border layout NOW
  	if (_create() === 'cancel') // onload_start callback returned false to CANCEL layout creation
  		return null;
  	else // true OR false -- if layout-elements did NOT init (hidden or do not exist), can auto-init later
  		return Instance; // return the Instance object
  
  }
  })( jQuery );