text: var Attacklab = Attacklab || {};
  
  Attacklab.wmdBase = function(){
  
  	// A few handy aliases for readability.
  	var wmd  = top.Attacklab;
  	var doc  = top.document;
  	var re   = top.RegExp;
  	var nav  = top.navigator;
  	
  	// Some namespaces.
  	wmd.Util = {};
  	wmd.Position = {};
  	wmd.Command = {};
  	wmd.Global = {};
  	
  	var util = wmd.Util;
  	var position = wmd.Position;
  	var command = wmd.Command;
  	var global = wmd.Global;
  	
  	
  	// Used to work around some browser bugs where we can't use feature testing.
  	global.isIE 		= /msie/.test(nav.userAgent.toLowerCase());
  	global.isIE_5or6 	= /msie 6/.test(nav.userAgent.toLowerCase()) || /msie 5/.test(nav.userAgent.toLowerCase());
  	global.isIE_7plus 	= global.isIE && !global.isIE_5or6;
  	global.isOpera 		= /opera/.test(nav.userAgent.toLowerCase());
  	global.isKonqueror 	= /konqueror/.test(nav.userAgent.toLowerCase());
  	
  	
  	// -------------------------------------------------------------------
  	//  YOUR CHANGES GO HERE
  	//
  	// I've tried to localize the things you are likely to change to 
  	// this area.
  	// -------------------------------------------------------------------
  	
  	// The text that appears on the upper part of the dialog box when
  	// entering links.
  	var imageDialogText = "<p style='margin-top: 0px'><b>Enter the image URL.</b></p><p>You can also add a title, which will be displayed as a tool tip.</p><p>Example:<br />http://wmd-editor.com/images/cloud1.jpg   \"Optional title\"</p>";
  	var linkDialogText = "<p style='margin-top: 0px'><b>Enter the web address.</b></p><p>You can also add a title, which will be displayed as a tool tip.</p><p>Example:<br />http://wmd-editor.com/   \"Optional title\"</p>";
  	
  	// The default text that appears in the dialog input box when entering
  	// links.
  	var imageDefaultText = "http://";
  	var linkDefaultText = "http://";
  	
  	// The location of your button images relative to the base directory.
  	var imageDirectory = "images/";
  	
  	// Some intervals in ms.  These can be adjusted to reduce the control's load.
  	var previewPollInterval = 500;
  	var pastePollInterval = 100;
  	
  	// The link and title for the help button
  	var helpLink = "http://wmd-editor.com/";
  	var helpHoverTitle = "WMD website";
  	var helpTarget = "_blank";
  	
  	// -------------------------------------------------------------------
  	//  END OF YOUR CHANGES
  	// -------------------------------------------------------------------
  	
  	// A collection of the important regions on the page.
  	// Cached so we don't have to keep traversing the DOM.
  	wmd.PanelCollection = function(){
  		this.buttonBar = doc.getElementById("wmd-button-bar");
  		this.preview = doc.getElementById("wmd-preview");
  		this.output = doc.getElementById("wmd-output");
  		this.input = doc.getElementById("wmd-input");
  	};
  	
  	// This PanelCollection object can't be filled until after the page
  	// has loaded.
  	wmd.panels = undefined;
  	
  	// Internet explorer has problems with CSS sprite buttons that use HTML
  	// lists.  When you click on the background image "button", IE will 
  	// select the non-existent link text and discard the selection in the
  	// textarea.  The solution to this is to cache the textarea selection
  	// on the button's mousedown event and set a flag.  In the part of the
  	// code where we need to grab the selection, we check for the flag
  	// and, if it's set, use the cached area instead of querying the
  	// textarea.
  	//
  	// This ONLY affects Internet Explorer (tested on versions 6, 7
  	// and 8) and ONLY on button clicks.  Keyboard shortcuts work
  	// normally since the focus never leaves the textarea.
  	wmd.ieCachedRange = null;		// cached textarea selection
  	wmd.ieRetardedClick = false;	// flag
  	
  	// Returns true if the DOM element is visible, false if it's hidden.
  	// Checks if display is anything other than none.
  	util.isVisible = function (elem) {
  	
  	    if (window.getComputedStyle) {
  	        // Most browsers
  			return window.getComputedStyle(elem, null).getPropertyValue("display") !== "none";
  		}
  		else if (elem.currentStyle) {
  		    // IE
  			return elem.currentStyle["display"] !== "none";
  		}
  	};
  	
  	
  	// Adds a listener callback to a DOM element which is fired on a specified
  	// event.
  	util.addEvent = function(elem, event, listener){
  		if (elem.attachEvent) {
  			// IE only.  The "on" is mandatory.
  			elem.attachEvent("on" + event, listener);
  		}
  		else {
  			// Other browsers.
  			elem.addEventListener(event, listener, false);
  		}
  	};
  
  	
  	// Removes a listener callback from a DOM element which is fired on a specified
  	// event.
  	util.removeEvent = function(elem, event, listener){
  		if (elem.detachEvent) {
  			// IE only.  The "on" is mandatory.
  			elem.detachEvent("on" + event, listener);
  		}
  		else {
  			// Other browsers.
  			elem.removeEventListener(event, listener, false);
  		}
  	};
  
  	// Converts \r\n and \r to \n.
  	util.fixEolChars = function(text){
  		text = text.replace(/\r\n/g, "\n");
  		text = text.replace(/\r/g, "\n");
  		return text;
  	};
  
  	// Extends a regular expression.  Returns a new RegExp
  	// using pre + regex + post as the expression.
  	// Used in a few functions where we have a base
  	// expression and we want to pre- or append some
  	// conditions to it (e.g. adding "$" to the end).
  	// The flags are unchanged.
  	//
  	// regex is a RegExp, pre and post are strings.
  	util.extendRegExp = function(regex, pre, post){
  		
  		if (pre === null || pre === undefined)
  		{
  			pre = "";
  		}
  		if(post === null || post === undefined)
  		{
  			post = "";
  		}
  		
  		var pattern = regex.toString();
  		var flags = "";
  		
  		// Replace the flags with empty space and store them.
  		// Technically, this can match incorrect flags like "gmm".
  		var result = pattern.match(/\/([gim]*)$/);
  		if (result === null) {
  			flags = result[0];
  		}
  		else {
  			flags = "";
  		}
  		
  		// Remove the flags and slash delimiters from the regular expression.
  		pattern = pattern.replace(/(^\/|\/[gim]*$)/g, "");
  		pattern = pre + pattern + post;
  		
  		return new RegExp(pattern, flags);
  	}
  
  	
  	// Sets the image for a button passed to the WMD editor.
  	// Returns a new element with the image attached.
  	// Adds several style properties to the image.
  	util.createImage = function(img){
  		
  		var imgPath = imageDirectory + img;
  		
  		var elem = doc.createElement("img");
  		elem.className = "wmd-button";
  		elem.src = imgPath;
  
  		return elem;
  	};
  	
  
  	// This simulates a modal dialog box and asks for the URL when you
  	// click the hyperlink or image buttons.
  	//
  	// text: The html for the input box.
  	// defaultInputText: The default value that appears in the input box.
  	// makeLinkMarkdown: The function which is executed when the prompt is dismissed, either via OK or Cancel
  	util.prompt = function(text, defaultInputText, makeLinkMarkdown){
  	
  		// These variables need to be declared at this level since they are used
  		// in multiple functions.
  		var dialog;			// The dialog box.
  		var background;		// The background beind the dialog box.
  		var input;			// The text box where you enter the hyperlink.
  		
  
  		if (defaultInputText === undefined) {
  			defaultInputText = "";
  		}
  		
  		// Used as a keydown event handler. Esc dismisses the prompt.
  		// Key code 27 is ESC.
  		var checkEscape = function(key){
  			var code = (key.charCode || key.keyCode);
  			if (code === 27) {
  				close(true);
  			}
  		};
  		
  		// Dismisses the hyperlink input box.
  		// isCancel is true if we don't care about the input text.
  		// isCancel is false if we are going to keep the text.
  		var close = function(isCancel){
  			util.removeEvent(doc.body, "keydown", checkEscape);
  			var text = input.value;
  
  			if (isCancel){
  				text = null;
  			}
  			else{
  				// Fixes common pasting errors.
  				text = text.replace('http://http://', 'http://');
  				text = text.replace('http://https://', 'https://');
  				text = text.replace('http://ftp://', 'ftp://');
  				
  				if (text.indexOf('http://') === -1 && text.indexOf('ftp://') === -1 && text.indexOf('https://') === -1) {
  					text = 'http://' + text;
  				}
  			}
  			
  			dialog.parentNode.removeChild(dialog);
  			background.parentNode.removeChild(background);
  			makeLinkMarkdown(text);
  			return false;
  		};
  		
  		// Creates the background behind the hyperlink text entry box.
  		// Most of this has been moved to CSS but the div creation and
  		// browser-specific hacks remain here.
  		var createBackground = function(){
  		
  			background = doc.createElement("div");
  			background.className = "wmd-prompt-background";
  			style = background.style;
  			style.position = "absolute";
  			style.top = "0";
  			
  			style.zIndex = "1000";
  			
  			// Some versions of Konqueror don't support transparent colors
  			// so we make the whole window transparent.
  			//
  			// Is this necessary on modern konqueror browsers?
  			if (global.isKonqueror){
  				style.backgroundColor = "transparent";
  			}
  			else if (global.isIE){
  				style.filter = "alpha(opacity=50)";
  			}
  			else {
  				style.opacity = "0.5";
  			}
  			
  			var pageSize = position.getPageSize();
  			style.height = pageSize[1] + "px";
  			
  			if(global.isIE){
  				style.left = doc.documentElement.scrollLeft;
  				style.width = doc.documentElement.clientWidth;
  			}
  			else {
  				style.left = "0";
  				style.width = "100%";
  			}
  			
  			doc.body.appendChild(background);
  		};
  		
  		// Create the text input box form/window.
  		var createDialog = function(){
  		
  			// The main dialog box.
  			dialog = doc.createElement("div");
  			dialog.className = "wmd-prompt-dialog";
  			dialog.style.padding = "10px;";
  			dialog.style.position = "fixed";
  			dialog.style.width = "400px";
  			dialog.style.zIndex = "1001";
  			
  			// The dialog text.
  			var question = doc.createElement("div");
  			question.innerHTML = text;
  			question.style.padding = "5px";
  			dialog.appendChild(question);
  			
  			// The web form container for the text box and buttons.
  			var form = doc.createElement("form");
  			form.onsubmit = function(){ return close(false); };
  			style = form.style;
  			style.padding = "0";
  			style.margin = "0";
  			style.cssFloat = "left";
  			style.width = "100%";
  			style.textAlign = "center";
  			style.position = "relative";
  			dialog.appendChild(form);
  			
  			// The input text box
  			input = doc.createElement("input");
  			input.type = "text";
  			input.value = defaultInputText;
  			style = input.style;
  			style.display = "block";
  			style.width = "80%";
  			style.marginLeft = style.marginRight = "auto";
  			form.appendChild(input);
  			
  			// The ok button
  			var okButton = doc.createElement("input");
  			okButton.type = "button";
  			okButton.onclick = function(){ return close(false); };
  			okButton.value = "OK";
  			style = okButton.style;
  			style.margin = "10px";
  			style.display = "inline";
  			style.width = "7em";
  
  			
  			// The cancel button
  			var cancelButton = doc.createElement("input");
  			cancelButton.type = "button";
  			cancelButton.onclick = function(){ return close(true); };
  			cancelButton.value = "Cancel";
  			style = cancelButton.style;
  			style.margin = "10px";
  			style.display = "inline";
  			style.width = "7em";
  
  			// The order of these buttons is different on macs.
  			if (/mac/.test(nav.platform.toLowerCase())) {
  				form.appendChild(cancelButton);
  				form.appendChild(okButton);
  			}
  			else {
  				form.appendChild(okButton);
  				form.appendChild(cancelButton);
  			}
  
  			util.addEvent(doc.body, "keydown", checkEscape);
  			dialog.style.top = "50%";
  			dialog.style.left = "50%";
  			dialog.style.display = "block";
  			if(global.isIE_5or6){
  				dialog.style.position = "absolute";
  				dialog.style.top = doc.documentElement.scrollTop + 200 + "px";
  				dialog.style.left = "50%";
  			}
  			doc.body.appendChild(dialog);
  			
  			// This has to be done AFTER adding the dialog to the form if you
  			// want it to be centered.
  			dialog.style.marginTop = -(position.getHeight(dialog) / 2) + "px";
  			dialog.style.marginLeft = -(position.getWidth(dialog) / 2) + "px";
  			
  		};
  		
  		createBackground();
  		
  		// Why is this in a zero-length timeout?
  		// Is it working around a browser bug?
  		top.setTimeout(function(){
  		
  			createDialog();
  
  			var defTextLen = defaultInputText.length;
  			if (input.selectionStart !== undefined) {
  				input.selectionStart = 0;
  				input.selectionEnd = defTextLen;
  			}
  			else if (input.createTextRange) {
  				var range = input.createTextRange();
  				range.collapse(false);
  				range.moveStart("character", -defTextLen);
  				range.moveEnd("character", defTextLen);
  				range.select();
  			}
  			
  			input.focus();
  		}, 0);
  	};
  	
  	
  	// UNFINISHED
  	// The assignment in the while loop makes jslint cranky.
  	// I'll change it to a better loop later.
  	position.getTop = function(elem, isInner){
  		var result = elem.offsetTop;
  		if (!isInner) {
  			while (elem = elem.offsetParent) {
  				result += elem.offsetTop;
  			}
  		}
  		return result;
  	};
  	
  	position.getHeight = function (elem) {
  		return elem.offsetHeight || elem.scrollHeight;
  	};
  
  	position.getWidth = function (elem) {
  		return elem.offsetWidth || elem.scrollWidth;
  	};
  
  	position.getPageSize = function(){
  		
  		var scrollWidth, scrollHeight;
  		var innerWidth, innerHeight;
  		
  		// It's not very clear which blocks work with which browsers.
  		if(self.innerHeight && self.scrollMaxY){
  			scrollWidth = doc.body.scrollWidth;
  			scrollHeight = self.innerHeight + self.scrollMaxY;
  		}
  		else if(doc.body.scrollHeight > doc.body.offsetHeight){
  			scrollWidth = doc.body.scrollWidth;
  			scrollHeight = doc.body.scrollHeight;
  		}
  		else{
  			scrollWidth = doc.body.offsetWidth;
  			scrollHeight = doc.body.offsetHeight;
  		}
  		
  		if(self.innerHeight){
  			// Non-IE browser
  			innerWidth = self.innerWidth;
  			innerHeight = self.innerHeight;
  		}
  		else if(doc.documentElement && doc.documentElement.clientHeight){
  			// Some versions of IE (IE 6 w/ a DOCTYPE declaration)
  			innerWidth = doc.documentElement.clientWidth;
  			innerHeight = doc.documentElement.clientHeight;
  		}
  		else if(doc.body){
  			// Other versions of IE
  			innerWidth = doc.body.clientWidth;
  			innerHeight = doc.body.clientHeight;
  		}
  		
          var maxWidth = Math.max(scrollWidth, innerWidth);
          var maxHeight = Math.max(scrollHeight, innerHeight);
          return [maxWidth, maxHeight, innerWidth, innerHeight];
  	};
  	
  	// Watches the input textarea, polling at an interval and runs
  	// a callback function if anything has changed.
  	wmd.inputPoller = function(callback, interval){
  	
  		var pollerObj = this;
  		var inputArea = wmd.panels.input;
  		
  		// Stored start, end and text.  Used to see if there are changes to the input.
  		var lastStart;
  		var lastEnd;
  		var markdown;
  		
  		var killHandle; // Used to cancel monitoring on destruction.
  		// Checks to see if anything has changed in the textarea.
  		// If so, it runs the callback.
  		this.tick = function(){
  		
  			if (!util.isVisible(inputArea)) {
  				return;
  			}
  			
  			// Update the selection start and end, text.
  			if (inputArea.selectionStart || inputArea.selectionStart === 0) {
  				var start = inputArea.selectionStart;
  				var end = inputArea.selectionEnd;
  				if (start != lastStart || end != lastEnd) {
  					lastStart = start;
  					lastEnd = end;
  					
  					if (markdown != inputArea.value) {
  						markdown = inputArea.value;
  						return true;
  					}
  				}
  			}
  			return false;
  		};
  		
  		
  		var doTickCallback = function(){
  		
  			if (!util.isVisible(inputArea)) {
  				return;
  			}
  			
  			// If anything has changed, call the function.
  			if (pollerObj.tick()) {
  				callback();
  			}
  		};
  		
  		// Set how often we poll the textarea for changes.
  		var assignInterval = function(){
  			// previewPollInterval is set at the top of the namespace.
  			killHandle = top.setInterval(doTickCallback, interval);
  		};
  		
  		this.destroy = function(){
  			top.clearInterval(killHandle);
  		};
  		
  		assignInterval();
  	};
  	
  	// Handles pushing and popping TextareaStates for undo/redo commands.
  	// I should rename the stack variables to list.
  	wmd.undoManager = function(callback){
  	
  		var undoObj = this;
  		var undoStack = []; // A stack of undo states
  		var stackPtr = 0; // The index of the current state
  		var mode = "none";
  		var lastState; // The last state
  		var poller;
  		var timer; // The setTimeout handle for cancelling the timer
  		var inputStateObj;
  		
  		// Set the mode for later logic steps.
  		var setMode = function(newMode, noSave){
  		
  			if (mode != newMode) {
  				mode = newMode;
  				if (!noSave) {
  					saveState();
  				}
  			}
  			
  			if (!global.isIE || mode != "moving") {
  				timer = top.setTimeout(refreshState, 1);
  			}
  			else {
  				inputStateObj = null;
  			}
  		};
  		
  		var refreshState = function(){
  			inputStateObj = new wmd.TextareaState();
  			poller.tick();
  			timer = undefined;
  		};
  		
  		this.setCommandMode = function(){
  			mode = "command";
  			saveState();
  			timer = top.setTimeout(refreshState, 0);
  		};
  		
  		this.canUndo = function(){
  			return stackPtr > 1;
  		};
  		
  		this.canRedo = function(){
  			if (undoStack[stackPtr + 1]) {
  				return true;
  			}
  			return false;
  		};
  		
  		// Removes the last state and restores it.
  		this.undo = function(){
  		
  			if (undoObj.canUndo()) {
  				if (lastState) {
  					// What about setting state -1 to null or checking for undefined?
  					lastState.restore();
  					lastState = null;
  				}
  				else {
  					undoStack[stackPtr] = new wmd.TextareaState();
  					undoStack[--stackPtr].restore();
  					
  					if (callback) {
  						callback();
  					}
  				}
  			}
  			
  			mode = "none";
  			wmd.panels.input.focus();
  			refreshState();
  		};
  		
  		// Redo an action.
  		this.redo = function(){
  		
  			if (undoObj.canRedo()) {
  			
  				undoStack[++stackPtr].restore();
  				
  				if (callback) {
  					callback();
  				}
  			}
  			
  			mode = "none";
  			wmd.panels.input.focus();
  			refreshState();
  		};
  		
  		// Push the input area state to the stack.
  		var saveState = function(){
  		
  			var currState = inputStateObj || new wmd.TextareaState();
  			
  			if (!currState) {
  				return false;
  			}
  			if (mode == "moving") {
  				if (!lastState) {
  					lastState = currState;
  				}
  				return;
  			}
  			if (lastState) {
  				if (undoStack[stackPtr - 1].text != lastState.text) {
  					undoStack[stackPtr++] = lastState;
  				}
  				lastState = null;
  			}
  			undoStack[stackPtr++] = currState;
  			undoStack[stackPtr + 1] = null;
  			if (callback) {
  				callback();
  			}
  		};
  		
  		var handleCtrlYZ = function(event){
  		
  			var handled = false;
  			
  			if (event.ctrlKey || event.metaKey) {
  			
  				// IE and Opera do not support charCode.
  				var keyCode = event.charCode || event.keyCode;
  				var keyCodeChar = String.fromCharCode(keyCode);
  				
  				switch (keyCodeChar) {
  				
  					case "y":
  						undoObj.redo();
  						handled = true;
  						break;
  						
  					case "z":
  						if (!event.shiftKey) {
  							undoObj.undo();
  						}
  						else {
  							undoObj.redo();
  						}
  						handled = true;
  						break;
  				}
  			}
  			
  			if (handled) {
  				if (event.preventDefault) {
  					event.preventDefault();
  				}
  				if (top.event) {
  					top.event.returnValue = false;
  				}
  				return;
  			}
  		};
  		
  		// Set the mode depending on what is going on in the input area.
  		var handleModeChange = function(event){
  		
  			if (!event.ctrlKey && !event.metaKey) {
  			
  				var keyCode = event.keyCode;
  				
  				if ((keyCode >= 33 && keyCode <= 40) || (keyCode >= 63232 && keyCode <= 63235)) {
  					// 33 - 40: page up/dn and arrow keys
  					// 63232 - 63235: page up/dn and arrow keys on safari
  					setMode("moving");
  				}
  				else if (keyCode == 8 || keyCode == 46 || keyCode == 127) {
  					// 8: backspace
  					// 46: delete
  					// 127: delete
  					setMode("deleting");
  				}
  				else if (keyCode == 13) {
  					// 13: Enter
  					setMode("newlines");
  				}
  				else if (keyCode == 27) {
  					// 27: escape
  					setMode("escape");
  				}
  				else if ((keyCode < 16 || keyCode > 20) && keyCode != 91) {
  					// 16-20 are shift, etc. 
  					// 91: left window key
  					// I think this might be a little messed up since there are
  					// a lot of nonprinting keys above 20.
  					setMode("typing");
  				}
  			}
  		};
  		
  		var setEventHandlers = function(){
  		
  			util.addEvent(wmd.panels.input, "keypress", function(event){
  				// keyCode 89: y
  				// keyCode 90: z
  				if ((event.ctrlKey || event.metaKey) && (event.keyCode == 89 || event.keyCode == 90)) {
  					event.preventDefault();
  				}
  			});
  			
  			var handlePaste = function(){
  				if (global.isIE || (inputStateObj && inputStateObj.text != wmd.panels.input.value)) {
  					if (timer == undefined) {
  						mode = "paste";
  						saveState();
  						refreshState();
  					}
  				}
  			};
  			
  			// pastePollInterval is specified at the beginning of this namespace.
  			poller = new wmd.inputPoller(handlePaste, pastePollInterval);
  			
  			util.addEvent(wmd.panels.input, "keydown", handleCtrlYZ);
  			util.addEvent(wmd.panels.input, "keydown", handleModeChange);
  			
  			util.addEvent(wmd.panels.input, "mousedown", function(){
  				setMode("moving");
  			});
  			wmd.panels.input.onpaste = handlePaste;
  			wmd.panels.input.ondrop = handlePaste;
  		};
  		
  		var init = function(){
  			setEventHandlers();
  			refreshState();
  			saveState();
  		};
  		
  		this.destroy = function(){
  			if (poller) {
  				poller.destroy();
  			}
  		};
  		
  		init();
  	};
  	
  	// I think my understanding of how the buttons and callbacks are stored in the array is incomplete.
  	wmd.editor = function(previewRefreshCallback){
  	
  		if (!previewRefreshCallback) {
  			previewRefreshCallback = function(){};
  		}
  		
  		var inputBox = wmd.panels.input;
  		
  		var offsetHeight = 0;
  		
  		var editObj = this;
  		
  		var mainDiv;
  		var mainSpan;
  		
  		var div; // This name is pretty ambiguous.  I should rename this.
  		
  		// Used to cancel recurring events from setInterval.
  		var creationHandle;
  		
  		var undoMgr; // The undo manager
  		
  		// Perform the button's action.
  		var doClick = function(button){
  		
  			inputBox.focus();
  			
  			if (button.textOp) {
  				
  				if (undoMgr) {
  					undoMgr.setCommandMode();
  				}
  				
  				var state = new wmd.TextareaState();
  				
  				if (!state) {
  					return;
  				}
  				
  				var chunks = state.getChunks();
  				
  				// Some commands launch a "modal" prompt dialog.  Javascript
  				// can't really make a modal dialog box and the WMD code
  				// will continue to execute while the dialog is displayed.
  				// This prevents the dialog pattern I'm used to and means
  				// I can't do something like this:
  				//
  				// var link = CreateLinkDialog();
  				// makeMarkdownLink(link);
  				// 
  				// Instead of this straightforward method of handling a
  				// dialog I have to pass any code which would execute
  				// after the dialog is dismissed (e.g. link creation)
  				// in a function parameter.
  				//
  				// Yes this is awkward and I think it sucks, but there's
  				// no real workaround.  Only the image and link code
  				// create dialogs and require the function pointers.
  				var fixupInputArea = function(){
  				
  					inputBox.focus();
  					
  					if (chunks) {
  						state.setChunks(chunks);
  					}
  					
  					state.restore();
  					previewRefreshCallback();
  				};
  				
  				var useDefaultText = true;
  				var noCleanup = button.textOp(chunks, fixupInputArea, useDefaultText);
  				
  				if(!noCleanup) {
  					fixupInputArea();
  				}
  				
  			}
  			
  			if (button.execute) {
  				button.execute(editObj);
  			}
  		};
  			
  		var setUndoRedoButtonStates = function(){
  			if(undoMgr){
  				setupButton(document.getElementById("wmd-undo-button"), undoMgr.canUndo());
  				setupButton(document.getElementById("wmd-redo-button"), undoMgr.canRedo());
  			}
  		};
  		
  		var setupButton = function(button, isEnabled) {
  		
  			var normalYShift = "0px";
  			var disabledYShift = "-20px";
  			var highlightYShift = "-40px";
  			
  			if(isEnabled) {
  				button.style.backgroundPosition = button.XShift + " " + normalYShift;
  				button.onmouseover = function(){
  					this.style.backgroundPosition = this.XShift + " " + highlightYShift;
  				};
  							
  				button.onmouseout = function(){
  					this.style.backgroundPosition = this.XShift + " " + normalYShift;
  				};
  				
  				// IE tries to select the background image "button" text (it's
  				// implemented in a list item) so we have to cache the selection
  				// on mousedown.
  				if(global.isIE) {
  					button.onmousedown =  function() { 
  						wmd.ieRetardedClick = true;
  						wmd.ieCachedRange = document.selection.createRange(); 
  					};
  				}
  				
  				if (!button.isHelp)
  				{
  					button.onclick = function() {
  						if (this.onmouseout) {
  							this.onmouseout();
  						}
  						doClick(this);
  						return false;
  					}
  				}
  			}
  			else {
  				button.style.backgroundPosition = button.XShift + " " + disabledYShift;
  				button.onmouseover = button.onmouseout = button.onclick = function(){};
  			}
  		}
  	
  		var makeSpritedButtonRow = function(){
  		 	
  			var buttonBar = document.getElementById("wmd-button-bar");
   	
  			var normalYShift = "0px";
  			var disabledYShift = "-20px";
  			var highlightYShift = "-40px";
  			
  			var buttonRow = document.createElement("ul");
  			buttonRow.id = "wmd-button-row";
  			buttonRow = buttonBar.appendChild(buttonRow);
  
  			
  			var boldButton = document.createElement("li");
  			boldButton.className = "wmd-button";
  			boldButton.id = "wmd-bold-button";
  			boldButton.title = "Strong <strong> Ctrl+B";
  			boldButton.XShift = "0px";
  			boldButton.textOp = command.doBold;
  			setupButton(boldButton, true);
  			buttonRow.appendChild(boldButton);
  			
  			var italicButton = document.createElement("li");
  			italicButton.className = "wmd-button";
  			italicButton.id = "wmd-italic-button";
  			italicButton.title = "Emphasis <em> Ctrl+I";
  			italicButton.XShift = "-20px";
  			italicButton.textOp = command.doItalic;
  			setupButton(italicButton, true);
  			buttonRow.appendChild(italicButton);
  
  			var spacer1 = document.createElement("li");
  			spacer1.className = "wmd-spacer";
  			spacer1.id = "wmd-spacer1";
  			buttonRow.appendChild(spacer1); 
  
  			var linkButton = document.createElement("li");
  			linkButton.className = "wmd-button";
  			linkButton.id = "wmd-link-button";
  			linkButton.title = "Hyperlink <a> Ctrl+L";
  			linkButton.XShift = "-40px";
  			linkButton.textOp = function(chunk, postProcessing, useDefaultText){
  				return command.doLinkOrImage(chunk, postProcessing, false);
  			};
  			setupButton(linkButton, true);
  			buttonRow.appendChild(linkButton);
  
  			var quoteButton = document.createElement("li");
  			quoteButton.className = "wmd-button";
  			quoteButton.id = "wmd-quote-button";
  			quoteButton.title = "Blockquote <blockquote> Ctrl+Q";
  			quoteButton.XShift = "-60px";
  			quoteButton.textOp = command.doBlockquote;
  			setupButton(quoteButton, true);
  			buttonRow.appendChild(quoteButton);
  			
  			var codeButton = document.createElement("li");
  			codeButton.className = "wmd-button";
  			codeButton.id = "wmd-code-button";
  			codeButton.title = "Code Sample <pre><code> Ctrl+K";
  			codeButton.XShift = "-80px";
  			codeButton.textOp = command.doCode;
  			setupButton(codeButton, true);
  			buttonRow.appendChild(codeButton);
  
  			var imageButton = document.createElement("li");
  			imageButton.className = "wmd-button";
  			imageButton.id = "wmd-image-button";
  			imageButton.title = "Image <img> Ctrl+G";
  			imageButton.XShift = "-100px";
  			imageButton.textOp = function(chunk, postProcessing, useDefaultText){
  				return command.doLinkOrImage(chunk, postProcessing, true);
  			};
  			setupButton(imageButton, true);
  			buttonRow.appendChild(imageButton);
  
  			var spacer2 = document.createElement("li");
  			spacer2.className = "wmd-spacer";
  			spacer2.id = "wmd-spacer2";
  			buttonRow.appendChild(spacer2); 
  
  			var olistButton = document.createElement("li");
  			olistButton.className = "wmd-button";
  			olistButton.id = "wmd-olist-button";
  			olistButton.title = "Numbered List <ol> Ctrl+O";
  			olistButton.XShift = "-120px";
  			olistButton.textOp = function(chunk, postProcessing, useDefaultText){
  				command.doList(chunk, postProcessing, true, useDefaultText);
  			};
  			setupButton(olistButton, true);
  			buttonRow.appendChild(olistButton);
  			
  			var ulistButton = document.createElement("li");
  			ulistButton.className = "wmd-button";
  			ulistButton.id = "wmd-ulist-button";
  			ulistButton.title = "Bulleted List <ul> Ctrl+U";
  			ulistButton.XShift = "-140px";
  			ulistButton.textOp = function(chunk, postProcessing, useDefaultText){
  				command.doList(chunk, postProcessing, false, useDefaultText);
  			};
  			setupButton(ulistButton, true);
  			buttonRow.appendChild(ulistButton);
  			
  			var headingButton = document.createElement("li");
  			headingButton.className = "wmd-button";
  			headingButton.id = "wmd-heading-button";
  			headingButton.title = "Heading <h1>/<h2> Ctrl+H";
  			headingButton.XShift = "-160px";
  			headingButton.textOp = command.doHeading;
  			setupButton(headingButton, true);
  			buttonRow.appendChild(headingButton); 
  			
  			var hrButton = document.createElement("li");
  			hrButton.className = "wmd-button";
  			hrButton.id = "wmd-hr-button";
  			hrButton.title = "Horizontal Rule <hr> Ctrl+R";
  			hrButton.XShift = "-180px";
  			hrButton.textOp = command.doHorizontalRule;
  			setupButton(hrButton, true);
  			buttonRow.appendChild(hrButton); 
  			
  			var spacer3 = document.createElement("li");
  			spacer3.className = "wmd-spacer";
  			spacer3.id = "wmd-spacer3";
  			buttonRow.appendChild(spacer3); 
  			
  			var undoButton = document.createElement("li");
  			undoButton.className = "wmd-button";
  			undoButton.id = "wmd-undo-button";
  			undoButton.title = "Undo - Ctrl+Z";
  			undoButton.XShift = "-200px";
  			undoButton.execute = function(manager){
  				manager.undo();
  			};
  			setupButton(undoButton, true);
  			buttonRow.appendChild(undoButton); 
  			
  			var redoButton = document.createElement("li");
  			redoButton.className = "wmd-button";
  			redoButton.id = "wmd-redo-button";
  			redoButton.title = "Redo - Ctrl+Y";
  			if (/win/.test(nav.platform.toLowerCase())) {
  				redoButton.title = "Redo - Ctrl+Y";
  			}
  			else {
  				// mac and other non-Windows platforms
  				redoButton.title = "Redo - Ctrl+Shift+Z";
  			}
  			redoButton.XShift = "-220px";
  			redoButton.execute = function(manager){
  				manager.redo();
  			};
  			setupButton(redoButton, true);
  			buttonRow.appendChild(redoButton); 
  			
  			var helpButton = document.createElement("li");
  			helpButton.className = "wmd-button";
  			helpButton.id = "wmd-help-button";
  			helpButton.XShift = "-240px";
  			helpButton.isHelp = true;
  			
  			var helpAnchor = document.createElement("a");
  			helpAnchor.href = helpLink;
  			helpAnchor.target = helpTarget
  			helpAnchor.title = helpHoverTitle;
  			helpButton.appendChild(helpAnchor);
  			
  			setupButton(helpButton, true);
  			buttonRow.appendChild(helpButton);
  			
  			setUndoRedoButtonStates();
  		}
  		
  		var setupEditor = function(){
  		
  			if (/\?noundo/.test(doc.location.href)) {
  				wmd.nativeUndo = true;
  			}
  			
  			if (!wmd.nativeUndo) {
  				undoMgr = new wmd.undoManager(function(){
  					previewRefreshCallback();
  					setUndoRedoButtonStates();
  				});
  			}
  			
  			makeSpritedButtonRow();
  			
  			
  			var keyEvent = "keydown";
  			if (global.isOpera) {
  				keyEvent = "keypress";
  			}
  			
  			util.addEvent(inputBox, keyEvent, function(key){
  				
  				// Check to see if we have a button key and, if so execute the callback.
  				if (key.ctrlKey || key.metaKey) {
  			
  					var keyCode = key.charCode || key.keyCode;
  					var keyCodeStr = String.fromCharCode(keyCode).toLowerCase();
  					
  					switch(keyCodeStr) {
  						case "b":
  							doClick(document.getElementById("wmd-bold-button"));
  							break;
  						case "i":
  							doClick(document.getElementById("wmd-italic-button"));
  							break;
  						case "l":
  							doClick(document.getElementById("wmd-link-button"));
  							break;
  						case "q":
  							doClick(document.getElementById("wmd-quote-button"));
  							break;
  						case "k":
  							doClick(document.getElementById("wmd-code-button"));
  							break;
  						case "g":
  							doClick(document.getElementById("wmd-image-button"));
  							break;
  						case "o":
  							doClick(document.getElementById("wmd-olist-button"));
  							break;
  						case "u":
  							doClick(document.getElementById("wmd-ulist-button"));
  							break;
  						case "h":
  							doClick(document.getElementById("wmd-heading-button"));
  							break;
  						case "r":
  							doClick(document.getElementById("wmd-hr-button"));
  							break;
  						case "y":
  							doClick(document.getElementById("wmd-redo-button"));
  							break;
  						case "z":
  							if(key.shiftKey) {
  								doClick(document.getElementById("wmd-redo-button"));
  							}
  							else {
  								doClick(document.getElementById("wmd-undo-button"));
  							}
  							break;
  						default:
  							return;
  					}
  					
  
  					if (key.preventDefault) {
  						key.preventDefault();
  					}
  					
  					if (top.event) {
  						top.event.returnValue = false;
  					}
  				}
  			});
  			
  			// Auto-continue lists, code blocks and block quotes when
  			// the enter key is pressed.
  			util.addEvent(inputBox, "keyup", function(key){
  				if (!key.shiftKey && !key.ctrlKey && !key.metaKey) {
  					var keyCode = key.charCode || key.keyCode;
  					// Key code 13 is Enter
  					if (keyCode === 13) {
  						fakeButton = {};
  						fakeButton.textOp = command.doAutoindent;
  						doClick(fakeButton);
  					}
  				}
  			});
  			
  			// Disable ESC clearing the input textarea on IE
  			if (global.isIE) {
  				util.addEvent(inputBox, "keydown", function(key){
  					var code = key.keyCode;
  					// Key code 27 is ESC
  					if (code === 27) {
  						return false;
  					}
  				});
  			}
  			
  			if (inputBox.form) {
  				var submitCallback = inputBox.form.onsubmit;
  				inputBox.form.onsubmit = function(){
  					convertToHtml();
  					if (submitCallback) {
  						return submitCallback.apply(this, arguments);
  					}
  				};
  			}
  		};
  		
  		// Convert the contents of the input textarea to HTML in the output/preview panels.
  		var convertToHtml = function(){
  		
  			if (wmd.showdown) {
  				var markdownConverter = new wmd.showdown.converter();
  			}
  			var text = inputBox.value;
  			
  			var callback = function(){
  				inputBox.value = text;
  			};
  			
  			if (!/markdown/.test(wmd.wmd_env.output.toLowerCase())) {
  				if (markdownConverter) {
  					inputBox.value = markdownConverter.makeHtml(text);
  					top.setTimeout(callback, 0);
  				}
  			}
  			return true;
  		};
  		
  		
  		this.undo = function(){
  			if (undoMgr) {
  				undoMgr.undo();
  			}
  		};
  		
  		this.redo = function(){
  			if (undoMgr) {
  				undoMgr.redo();
  			}
  		};
  		
  		// This is pretty useless.  The setupEditor function contents
  		// should just be copied here.
  		var init = function(){
  			setupEditor();
  		};
  		
  		this.destroy = function(){
  			if (undoMgr) {
  				undoMgr.destroy();
  			}
  			if (div.parentNode) {
  				div.parentNode.removeChild(div);
  			}
  			if (inputBox) {
  				inputBox.style.marginTop = "";
  			}
  			top.clearInterval(creationHandle);
  		};
  		
  		init();
  	};
  	
  	// The input textarea state/contents.
  	// This is used to implement undo/redo by the undo manager.
  	wmd.TextareaState = function(){
  	
  		// Aliases
  		var stateObj = this;
  		var inputArea = wmd.panels.input;
  		
  		this.init = function() {
  		
  			if (!util.isVisible(inputArea)) {
  				return;
  			}
  				
  			this.setInputAreaSelectionStartEnd();
  			this.scrollTop = inputArea.scrollTop;
  			if (!this.text && inputArea.selectionStart || inputArea.selectionStart === 0) {
  				this.text = inputArea.value;
  			}
  			
  		}
  		
  		// Sets the selected text in the input box after we've performed an
  		// operation.
  		this.setInputAreaSelection = function(){
  		
  			if (!util.isVisible(inputArea)) {
  				return;
  			}
  			
  			if (inputArea.selectionStart !== undefined && !global.isOpera) {
  			
  				inputArea.focus();
  				inputArea.selectionStart = stateObj.start;
  				inputArea.selectionEnd = stateObj.end;
  				inputArea.scrollTop = stateObj.scrollTop;
  			}
  			else if (doc.selection) {
  				
  				if (doc.activeElement && doc.activeElement !== inputArea) {
  					return;
  				}
  					
  				inputArea.focus();
  				var range = inputArea.createTextRange();
  				range.moveStart("character", -inputArea.value.length);
  				range.moveEnd("character", -inputArea.value.length);
  				range.moveEnd("character", stateObj.end);
  				range.moveStart("character", stateObj.start);
  				range.select();
  			}
  		};
  		
  		this.setInputAreaSelectionStartEnd = function(){
  		
  			if (inputArea.selectionStart || inputArea.selectionStart === 0) {
  			
  				stateObj.start = inputArea.selectionStart;
  				stateObj.end = inputArea.selectionEnd;
  			}
  			else if (doc.selection) {
  				
  				stateObj.text = util.fixEolChars(inputArea.value);
  				
  				// IE loses the selection in the textarea when buttons are
  				// clicked.  On IE we cache the selection and set a flag
  				// which we check for here.
  				var range;
  				if(wmd.ieRetardedClick && wmd.ieCachedRange) {
  					range = wmd.ieCachedRange;
  					wmd.ieRetardedClick = false;
  				}
  				else {
  					range = doc.selection.createRange();
  				}
  
  				var fixedRange = util.fixEolChars(range.text);
  				var marker = "\x07";
  				var markedRange = marker + fixedRange + marker;
  				range.text = markedRange;
  				var inputText = util.fixEolChars(inputArea.value);
  					
  				range.moveStart("character", -markedRange.length);
  				range.text = fixedRange;
  
  				stateObj.start = inputText.indexOf(marker);
  				stateObj.end = inputText.lastIndexOf(marker) - marker.length;
  					
  				var len = stateObj.text.length - util.fixEolChars(inputArea.value).length;
  					
  				if (len) {
  					range.moveStart("character", -fixedRange.length);
  					while (len--) {
  						fixedRange += "\n";
  						stateObj.end += 1;
  					}
  					range.text = fixedRange;
  				}
  					
  				this.setInputAreaSelection();
  			}
  		};
  		
  		// Restore this state into the input area.
  		this.restore = function(){
  		
  			if (stateObj.text != undefined && stateObj.text != inputArea.value) {
  				inputArea.value = stateObj.text;
  			}
  			this.setInputAreaSelection();
  			inputArea.scrollTop = stateObj.scrollTop;
  		};
  		
  		// Gets a collection of HTML chunks from the inptut textarea.
  		this.getChunks = function(){
  		
  			var chunk = new wmd.Chunks();
  			
  			chunk.before = util.fixEolChars(stateObj.text.substring(0, stateObj.start));
  			chunk.startTag = "";
  			chunk.selection = util.fixEolChars(stateObj.text.substring(stateObj.start, stateObj.end));
  			chunk.endTag = "";
  			chunk.after = util.fixEolChars(stateObj.text.substring(stateObj.end));
  			chunk.scrollTop = stateObj.scrollTop;
  			
  			return chunk;
  		};
  		
  		// Sets the TextareaState properties given a chunk of markdown.
  		this.setChunks = function(chunk){
  		
  			chunk.before = chunk.before + chunk.startTag;
  			chunk.after = chunk.endTag + chunk.after;
  			
  			if (global.isOpera) {
  				chunk.before = chunk.before.replace(/\n/g, "\r\n");
  				chunk.selection = chunk.selection.replace(/\n/g, "\r\n");
  				chunk.after = chunk.after.replace(/\n/g, "\r\n");
  			}
  			
  			this.start = chunk.before.length;
  			this.end = chunk.before.length + chunk.selection.length;
  			this.text = chunk.before + chunk.selection + chunk.after;
  			this.scrollTop = chunk.scrollTop;
  		};
  
  		this.init();
  	};
  	
  	// before: contains all the text in the input box BEFORE the selection.
  	// after: contains all the text in the input box AFTER the selection.
  	wmd.Chunks = function(){
  	};
  	
  	// startRegex: a regular expression to find the start tag
  	// endRegex: a regular expresssion to find the end tag
  	wmd.Chunks.prototype.findTags = function(startRegex, endRegex){
  	
  		var chunkObj = this;
  		var regex;
  		
  		if (startRegex) {
  			
  			regex = util.extendRegExp(startRegex, "", "$");
  			
  			this.before = this.before.replace(regex, 
  				function(match){
  					chunkObj.startTag = chunkObj.startTag + match;
  					return "";
  				});
  			
  			regex = util.extendRegExp(startRegex, "^", "");
  			
  			this.selection = this.selection.replace(regex, 
  				function(match){
  					chunkObj.startTag = chunkObj.startTag + match;
  					return "";
  				});
  		}
  		
  		if (endRegex) {
  			
  			regex = util.extendRegExp(endRegex, "", "$");
  			
  			this.selection = this.selection.replace(regex,
  				function(match){
  					chunkObj.endTag = match + chunkObj.endTag;
  					return "";
  				});
  
  			regex = util.extendRegExp(endRegex, "^", "");
  			
  			this.after = this.after.replace(regex,
  				function(match){
  					chunkObj.endTag = match + chunkObj.endTag;
  					return "";
  				});
  		}
  	};
  	
  	// If remove is false, the whitespace is transferred
  	// to the before/after regions.
  	//
  	// If remove is true, the whitespace disappears.
  	wmd.Chunks.prototype.trimWhitespace = function(remove){
  	
  		this.selection = this.selection.replace(/^(\s*)/, "");
  		
  		if (!remove) {
  			this.before += re.$1;
  		}
  		
  		this.selection = this.selection.replace(/(\s*)$/, "");
  		
  		if (!remove) {
  			this.after = re.$1 + this.after;
  		}
  	};
  	
  	
  	wmd.Chunks.prototype.addBlankLines = function(nLinesBefore, nLinesAfter, findExtraNewlines){
  	
  		if (nLinesBefore === undefined) {
  			nLinesBefore = 1;
  		}
  		
  		if (nLinesAfter === undefined) {
  			nLinesAfter = 1;
  		}
  		
  		nLinesBefore++;
  		nLinesAfter++;
  		
  		var regexText;
  		var replacementText;
  		
  		this.selection = this.selection.replace(/(^\n*)/, "");
  		this.startTag = this.startTag + re.$1;
  		this.selection = this.selection.replace(/(\n*$)/, "");
  		this.endTag = this.endTag + re.$1;
  		this.startTag = this.startTag.replace(/(^\n*)/, "");
  		this.before = this.before + re.$1;
  		this.endTag = this.endTag.replace(/(\n*$)/, "");
  		this.after = this.after + re.$1;
  		
  		if (this.before) {
  		
  			regexText = replacementText = "";
  			
  			while (nLinesBefore--) {
  				regexText += "\\n?";
  				replacementText += "\n";
  			}
  			
  			if (findExtraNewlines) {
  				regexText = "\\n*";
  			}
  			this.before = this.before.replace(new re(regexText + "$", ""), replacementText);
  		}
  		
  		if (this.after) {
  		
  			regexText = replacementText = "";
  			
  			while (nLinesAfter--) {
  				regexText += "\\n?";
  				replacementText += "\n";
  			}
  			if (findExtraNewlines) {
  				regexText = "\\n*";
  			}
  			
  			this.after = this.after.replace(new re(regexText, ""), replacementText);
  		}
  	};
  	
  	// The markdown symbols - 4 spaces = code, > = blockquote, etc.
  	command.prefixes = "(?:\\s{4,}|\\s*>|\\s*-\\s+|\\s*\\d+\\.|=|\\+|-|_|\\*|#|\\s*\\[[^\n]]+\\]:)";
  	
  	// Remove markdown symbols from the chunk selection.
  	command.unwrap = function(chunk){
  		var txt = new re("([^\\n])\\n(?!(\\n|" + command.prefixes + "))", "g");
  		chunk.selection = chunk.selection.replace(txt, "$1 $2");
  	};
  	
  	command.wrap = function(chunk, len){
  		command.unwrap(chunk);
  		var regex = new re("(.{1," + len + "})( +|$\\n?)", "gm");
  		
  		chunk.selection = chunk.selection.replace(regex, function(line, marked){
  			if (new re("^" + command.prefixes, "").test(line)) {
  				return line;
  			}
  			return marked + "\n";
  		});
  		
  		chunk.selection = chunk.selection.replace(/\s+$/, "");
  	};
  	
  	command.doBold = function(chunk, postProcessing, useDefaultText){
  		return command.doBorI(chunk, 2, "strong text");
  	};
  	
  	command.doItalic = function(chunk, postProcessing, useDefaultText){
  		return command.doBorI(chunk, 1, "emphasized text");
  	};
  	
  	// chunk: The selected region that will be enclosed with */**
  	// nStars: 1 for italics, 2 for bold
  	// insertText: If you just click the button without highlighting text, this gets inserted
  	command.doBorI = function(chunk, nStars, insertText){
  	
  		// Get rid of whitespace and fixup newlines.
  		chunk.trimWhitespace();
  		chunk.selection = chunk.selection.replace(/\n{2,}/g, "\n");
  		
  		// Look for stars before and after.  Is the chunk already marked up?
  		chunk.before.search(/(\**$)/);
  		var starsBefore = re.$1;
  		
  		chunk.after.search(/(^\**)/);
  		var starsAfter = re.$1;
  		
  		var prevStars = Math.min(starsBefore.length, starsAfter.length);
  		
  		// Remove stars if we have to since the button acts as a toggle.
  		if ((prevStars >= nStars) && (prevStars != 2 || nStars != 1)) {
  			chunk.before = chunk.before.replace(re("[*]{" + nStars + "}$", ""), "");
  			chunk.after = chunk.after.replace(re("^[*]{" + nStars + "}", ""), "");
  		}
  		else if (!chunk.selection && starsAfter) {
  			// It's not really clear why this code is necessary.  It just moves
  			// some arbitrary stuff around.
  			chunk.after = chunk.after.replace(/^([*_]*)/, "");
  			chunk.before = chunk.before.replace(/(\s?)$/, "");
  			var whitespace = re.$1;
  			chunk.before = chunk.before + starsAfter + whitespace;
  		}
  		else {
  		
  			// In most cases, if you don't have any selected text and click the button
  			// you'll get a selected, marked up region with the default text inserted.
  			if (!chunk.selection && !starsAfter) {
  				chunk.selection = insertText;
  			}
  			
  			// Add the true markup.
  			var markup = nStars <= 1 ? "*" : "**"; // shouldn't the test be = ?
  			chunk.before = chunk.before + markup;
  			chunk.after = markup + chunk.after;
  		}
  		
  		return;
  	};
  	
  	command.stripLinkDefs = function(text, defsToAdd){
  	
  		text = text.replace(/^[ ]{0,3}\[(\d+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|$)/gm, 
  			function(totalMatch, id, link, newlines, title){	
  				defsToAdd[id] = totalMatch.replace(/\s*$/, "");
  				if (newlines) {
  					// Strip the title and return that separately.
  					defsToAdd[id] = totalMatch.replace(/["(](.+?)[")]$/, "");
  					return newlines + title;
  				}
  				return "";
  			});
  		
  		return text;
  	};
  	
  	command.addLinkDef = function(chunk, linkDef){
  	
  		var refNumber = 0; // The current reference number
  		var defsToAdd = {}; //
  		// Start with a clean slate by removing all previous link definitions.
  		chunk.before = command.stripLinkDefs(chunk.before, defsToAdd);
  		chunk.selection = command.stripLinkDefs(chunk.selection, defsToAdd);
  		chunk.after = command.stripLinkDefs(chunk.after, defsToAdd);
  		
  		var defs = "";
  		var regex = /(\[(?:\[[^\]]*\]|[^\[\]])*\][ ]?(?:\n[ ]*)?\[)(\d+)(\])/g;
  		
  		var addDefNumber = function(def){
  			refNumber++;
  			def = def.replace(/^[ ]{0,3}\[(\d+)\]:/, "  [" + refNumber + "]:");
  			defs += "\n" + def;
  		};
  		
  		var getLink = function(wholeMatch, link, id, end){
  		
  			if (defsToAdd[id]) {
  				addDefNumber(defsToAdd[id]);
  				return link + refNumber + end;
  				
  			}
  			return wholeMatch;
  		};
  		
  		chunk.before = chunk.before.replace(regex, getLink);
  		
  		if (linkDef) {
  			addDefNumber(linkDef);
  		}
  		else {
  			chunk.selection = chunk.selection.replace(regex, getLink);
  		}
  		
  		var refOut = refNumber;
  		
  		chunk.after = chunk.after.replace(regex, getLink);
  		
  		if (chunk.after) {
  			chunk.after = chunk.after.replace(/\n*$/, "");
  		}
  		if (!chunk.after) {
  			chunk.selection = chunk.selection.replace(/\n*$/, "");
  		}
  		
  		chunk.after += "\n\n" + defs;
  		
  		return refOut;
  	};
  	
  	command.doLinkOrImage = function(chunk, postProcessing, isImage){
  	
  		chunk.trimWhitespace();
  		chunk.findTags(/\s*!?\[/, /\][ ]?(?:\n[ ]*)?(\[.*?\])?/);
  		
  		if (chunk.endTag.length > 1) {
  		
  			chunk.startTag = chunk.startTag.replace(/!?\[/, "");
  			chunk.endTag = "";
  			command.addLinkDef(chunk, null);
  			
  		}
  		else {
  		
  			if (/\n\n/.test(chunk.selection)) {
  				command.addLinkDef(chunk, null);
  				return;
  			}
  			
  			// The function to be executed when you enter a link and press OK or Cancel.
  			// Marks up the link and adds the ref.
  			var makeLinkMarkdown = function(link){
  			
  				if (link !== null) {
  				
  					chunk.startTag = chunk.endTag = "";
  					var linkDef = " [999]: " + link;
  					
  					var num = command.addLinkDef(chunk, linkDef);
  					chunk.startTag = isImage ? "![" : "[";
  					chunk.endTag = "][" + num + "]";
  					
  					if (!chunk.selection) {
  						if (isImage) {
  							chunk.selection = "alt text";
  						}
  						else {
  							chunk.selection = "link text";
  						}
  					}
  				}
  				postProcessing();
  			};
  			
  			if (isImage) {
  				util.prompt(imageDialogText, imageDefaultText, makeLinkMarkdown);
  			}
  			else {
  				util.prompt(linkDialogText, linkDefaultText, makeLinkMarkdown);
  			}
  			return true;
  		}
  	};
  	
  	util.makeAPI = function(){
  		wmd.wmd = {};
  		wmd.wmd.editor = wmd.editor;
  		wmd.wmd.previewManager = wmd.previewManager;
  	};
  	
  	util.startEditor = function(){
  	
  		if (wmd.wmd_env.autostart === false) {
  			util.makeAPI();
  			return;
  		}
  
  		var edit;		// The editor (buttons + input + outputs) - the main object.
  		var previewMgr;	// The preview manager.
  		
  		// Fired after the page has fully loaded.
  		var loadListener = function(){
  		
  			wmd.panels = new wmd.PanelCollection();
  			
  			previewMgr = new wmd.previewManager();
  			var previewRefreshCallback = previewMgr.refresh;
  						
  			edit = new wmd.editor(previewRefreshCallback);
  			
  			previewMgr.refresh(true);
  			
  		};
  		
  		util.addEvent(top, "load", loadListener);
  	};
  	
  	wmd.previewManager = function(){
  		
  		var managerObj = this;
  		var converter;
  		var poller;
  		var timeout;
  		var elapsedTime;
  		var oldInputText;
  		var htmlOut;
  		var maxDelay = 3000;
  		var startType = "delayed"; // The other legal value is "manual"
  		
  		// Adds event listeners to elements and creates the input poller.
  		var setupEvents = function(inputElem, listener){
  		
  			util.addEvent(inputElem, "input", listener);
  			inputElem.onpaste = listener;
  			inputElem.ondrop = listener;
  			
  			util.addEvent(inputElem, "keypress", listener);
  			util.addEvent(inputElem, "keydown", listener);
  			// previewPollInterval is set at the top of this file.
  			poller = new wmd.inputPoller(listener, previewPollInterval);
  		};
  		
  		var getDocScrollTop = function(){
  		
  			var result = 0;
  			
  			if (top.innerHeight) {
  				result = top.pageYOffset;
  			}
  			else 
  				if (doc.documentElement && doc.documentElement.scrollTop) {
  					result = doc.documentElement.scrollTop;
  				}
  				else 
  					if (doc.body) {
  						result = doc.body.scrollTop;
  					}
  			
  			return result;
  		};
  		
  		var makePreviewHtml = function(){
  		
  			// If there are no registered preview and output panels
  			// there is nothing to do.
  			if (!wmd.panels.preview && !wmd.panels.output) {
  				return;
  			}
  			
  			var text = wmd.panels.input.value;
  			if (text && text == oldInputText) {
  				return; // Input text hasn't changed.
  			}
  			else {
  				oldInputText = text;
  			}
  			
  			var prevTime = new Date().getTime();
  			
  			if (!converter && wmd.showdown) {
  				converter = new wmd.showdown.converter();
  			}
  			
  			if (converter) {
  				text = converter.makeHtml(text);
  			}
  			
  			// Calculate the processing time of the HTML creation.
  			// It's used as the delay time in the event listener.
  			var currTime = new Date().getTime();
  			elapsedTime = currTime - prevTime;
  			
  			text = text.replace("<code>", '<code class="prettyprint">');
  			
  			pushPreviewHtml(text);
  			prettyPrint();
  			
  			htmlOut = text;
  		};
  		
  		// setTimeout is already used.  Used as an event listener.
  		var applyTimeout = function(){
  		
  			if (timeout) {
  				top.clearTimeout(timeout);
  				timeout = undefined;
  			}
  			
  			if (startType !== "manual") {
  			
  				var delay = 0;
  				
  				if (startType === "delayed") {
  					delay = elapsedTime;
  				}
  				
  				if (delay > maxDelay) {
  					delay = maxDelay;
  				}
  				timeout = top.setTimeout(makePreviewHtml, delay);
  			}
  		};
  		
  		var getScaleFactor = function(panel){
  			if (panel.scrollHeight <= panel.clientHeight) {
  				return 1;
  			}
  			return panel.scrollTop / (panel.scrollHeight - panel.clientHeight);
  		};
  		
  		var setPanelScrollTops = function(){
  		
  			if (wmd.panels.preview) {
  				wmd.panels.preview.scrollTop = (wmd.panels.preview.scrollHeight - wmd.panels.preview.clientHeight) * getScaleFactor(wmd.panels.preview);
  				;
  			}
  			
  			if (wmd.panels.output) {
  				wmd.panels.output.scrollTop = (wmd.panels.output.scrollHeight - wmd.panels.output.clientHeight) * getScaleFactor(wmd.panels.output);
  				;
  			}
  		};
  		
  		this.refresh = function(requiresRefresh){
  		
  			if (requiresRefresh) {
  				oldInputText = "";
  				makePreviewHtml();
  			}
  			else {
  				applyTimeout();
  			}
  		};
  		
  		this.processingTime = function(){
  			return elapsedTime;
  		};
  		
  		// The output HTML
  		this.output = function(){
  			return htmlOut;
  		};
  		
  		// The mode can be "manual" or "delayed"
  		this.setUpdateMode = function(mode){
  			startType = mode;
  			managerObj.refresh();
  		};
  		
  		var isFirstTimeFilled = true;
  		
  		var pushPreviewHtml = function(text){
  		
  			var emptyTop = position.getTop(wmd.panels.input) - getDocScrollTop();
  			
  			// Send the encoded HTML to the output textarea/div.
  			if (wmd.panels.output) {
  				// The value property is only defined if the output is a textarea.
  				if (wmd.panels.output.value !== undefined) {
  					wmd.panels.output.value = text;
  					wmd.panels.output.readOnly = true;
  				}
  				// Otherwise we are just replacing the text in a div.
  				// Send the HTML wrapped in <pre><code>
  				else {
  					var newText = text.replace(/&/g, "&amp;");
  					newText = newText.replace(/</g, "&lt;");
  					wmd.panels.output.innerHTML = "<pre><code>" + newText + "</code></pre>";
  				}
  			}
  			
  			if (wmd.panels.preview) {
  				wmd.panels.preview.innerHTML = text;
  			}
  			
  			setPanelScrollTops();
  			
  			if (isFirstTimeFilled) {
  				isFirstTimeFilled = false;
  				return;
  			}
  			
  			var fullTop = position.getTop(wmd.panels.input) - getDocScrollTop();
  			
  			if (global.isIE) {
  				top.setTimeout(function(){
  					top.scrollBy(0, fullTop - emptyTop);
  				}, 0);
  			}
  			else {
  				top.scrollBy(0, fullTop - emptyTop);
  			}
  		};
  		
  		var init = function(){
  		
  			setupEvents(wmd.panels.input, applyTimeout);
  			makePreviewHtml();
  			
  			if (wmd.panels.preview) {
  				wmd.panels.preview.scrollTop = 0;
  			}
  			if (wmd.panels.output) {
  				wmd.panels.output.scrollTop = 0;
  			}
  		};
  		
  		this.destroy = function(){
  			if (poller) {
  				poller.destroy();
  			}
  		};
  		
  		init();
  	};
  
  	// Moves the cursor to the next line and continues lists, quotes and code.
  	command.doAutoindent = function(chunk, postProcessing, useDefaultText){
  		
  		chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]*\n$/, "\n\n");
  		chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}>[ \t]*\n$/, "\n\n");
  		chunk.before = chunk.before.replace(/(\n|^)[ \t]+\n$/, "\n\n");
  		
  		useDefaultText = false;
  		
  		if(/(\n|^)[ ]{0,3}([*+-])[ \t]+.*\n$/.test(chunk.before)){
  			if(command.doList){
  				command.doList(chunk, postProcessing, false, true);
  			}
  		}
  		if(/(\n|^)[ ]{0,3}(\d+[.])[ \t]+.*\n$/.test(chunk.before)){
  			if(command.doList){
  				command.doList(chunk, postProcessing, true, true);
  			}
  		}
  		if(/(\n|^)[ ]{0,3}>[ \t]+.*\n$/.test(chunk.before)){
  			if(command.doBlockquote){
  				command.doBlockquote(chunk, postProcessing, useDefaultText);
  			}
  		}
  		if(/(\n|^)(\t|[ ]{4,}).*\n$/.test(chunk.before)){
  			if(command.doCode){
  				command.doCode(chunk, postProcessing, useDefaultText);
  			}
  		}
  	};
  	
  	command.doBlockquote = function(chunk, postProcessing, useDefaultText){
  		
  		chunk.selection = chunk.selection.replace(/^(\n*)([^\r]+?)(\n*)$/,
  			function(totalMatch, newlinesBefore, text, newlinesAfter){
  				chunk.before += newlinesBefore;
  				chunk.after = newlinesAfter + chunk.after;
  				return text;
  			});
  			
  		chunk.before = chunk.before.replace(/(>[ \t]*)$/,
  			function(totalMatch, blankLine){
  				chunk.selection = blankLine + chunk.selection;
  				return "";
  			});
  		
  		var defaultText = useDefaultText ? "Blockquote" : "";
  		chunk.selection = chunk.selection.replace(/^(\s|>)+$/ ,"");
  		chunk.selection = chunk.selection || defaultText;
  		
  		if(chunk.before){
  			chunk.before = chunk.before.replace(/\n?$/,"\n");
  		}
  		if(chunk.after){
  			chunk.after = chunk.after.replace(/^\n?/,"\n");
  		}
  		
  		chunk.before = chunk.before.replace(/(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*$)/,
  			function(totalMatch){
  				chunk.startTag = totalMatch;
  				return "";
  			});
  			
  		chunk.after = chunk.after.replace(/^(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*)/,
  			function(totalMatch){
  				chunk.endTag = totalMatch;
  				return "";
  			});
  		
  		var replaceBlanksInTags = function(useBracket){
  			
  			var replacement = useBracket ? "> " : "";
  			
  			if(chunk.startTag){
  				chunk.startTag = chunk.startTag.replace(/\n((>|\s)*)\n$/,
  					function(totalMatch, markdown){
  						return "\n" + markdown.replace(/^[ ]{0,3}>?[ \t]*$/gm, replacement) + "\n";
  					});
  			}
  			if(chunk.endTag){
  				chunk.endTag = chunk.endTag.replace(/^\n((>|\s)*)\n/,
  					function(totalMatch, markdown){
  						return "\n" + markdown.replace(/^[ ]{0,3}>?[ \t]*$/gm, replacement) + "\n";
  					});
  			}
  		};
  		
  		if(/^(?![ ]{0,3}>)/m.test(chunk.selection)){
  			command.wrap(chunk, wmd.wmd_env.lineLength - 2);
  			chunk.selection = chunk.selection.replace(/^/gm, "> ");
  			replaceBlanksInTags(true);
  			chunk.addBlankLines();
  		}
  		else{
  			chunk.selection = chunk.selection.replace(/^[ ]{0,3}> ?/gm, "");
  			command.unwrap(chunk);
  			replaceBlanksInTags(false);
  			
  			if(!/^(\n|^)[ ]{0,3}>/.test(chunk.selection) && chunk.startTag){
  				chunk.startTag = chunk.startTag.replace(/\n{0,2}$/, "\n\n");
  			}
  			
  			if(!/(\n|^)[ ]{0,3}>.*$/.test(chunk.selection) && chunk.endTag){
  				chunk.endTag=chunk.endTag.replace(/^\n{0,2}/, "\n\n");
  			}
  		}
  		
  		if(!/\n/.test(chunk.selection)){
  			chunk.selection = chunk.selection.replace(/^(> *)/,
  			function(wholeMatch, blanks){
  				chunk.startTag += blanks;
  				return "";
  			});
  		}
  	};
  
  	command.doCode = function(chunk, postProcessing, useDefaultText){
  		
  		var hasTextBefore = /\S[ ]*$/.test(chunk.before);
  		var hasTextAfter = /^[ ]*\S/.test(chunk.after);
  		
  		// Use 'four space' markdown if the selection is on its own
  		// line or is multiline.
  		if((!hasTextAfter && !hasTextBefore) || /\n/.test(chunk.selection)){
  			
  			chunk.before = chunk.before.replace(/[ ]{4}$/,
  				function(totalMatch){
  					chunk.selection = totalMatch + chunk.selection;
  					return "";
  				});
  				
  			var nLinesBefore = 1;
  			var nLinesAfter = 1;
  			
  			
  			if(/\n(\t|[ ]{4,}).*\n$/.test(chunk.before) || chunk.after === ""){
  				nLinesBefore = 0; 
  			}
  			if(/^\n(\t|[ ]{4,})/.test(chunk.after)){
  				nLinesAfter = 0; // This needs to happen on line 1
  			}
  			
  			chunk.addBlankLines(nLinesBefore, nLinesAfter);
  			
  			if(!chunk.selection){
  				chunk.startTag = "    ";
  				chunk.selection = useDefaultText ? "enter code here" : "";
  			}
  			else {
  				if(/^[ ]{0,3}\S/m.test(chunk.selection)){
  					chunk.selection = chunk.selection.replace(/^/gm, "    ");
  				}
  				else{
  					chunk.selection = chunk.selection.replace(/^[ ]{4}/gm, "");
  				}
  			}
  		}
  		else{
  			// Use backticks (`) to delimit the code block.
  			
  			chunk.trimWhitespace();
  			chunk.findTags(/`/, /`/);
  			
  			if(!chunk.startTag && !chunk.endTag){
  				chunk.startTag = chunk.endTag="`";
  				if(!chunk.selection){
  					chunk.selection = useDefaultText ? "enter code here" : "";
  				}
  			}
  			else if(chunk.endTag && !chunk.startTag){
  				chunk.before += chunk.endTag;
  				chunk.endTag = "";
  			}
  			else{
  				chunk.startTag = chunk.endTag="";
  			}
  		}
  	};
  	
  	command.doList = function(chunk, postProcessing, isNumberedList, useDefaultText){
  				
  		// These are identical except at the very beginning and end.
  		// Should probably use the regex extension function to make this clearer.
  		var previousItemsRegex = /(\n|^)(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*$/;
  		var nextItemsRegex = /^\n*(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*/;
  		
  		// The default bullet is a dash but others are possible.
  		// This has nothing to do with the particular HTML bullet,
  		// it's just a markdown bullet.
  		var bullet = "-";
  		
  		// The number in a numbered list.
  		var num = 1;
  		
  		// Get the item prefix - e.g. " 1. " for a numbered list, " - " for a bulleted list.
  		var getItemPrefix = function(){
  			var prefix;
  			if(isNumberedList){
  				prefix = " " + num + ". ";
  				num++;
  			}
  			else{
  				prefix = " " + bullet + " ";
  			}
  			return prefix;
  		};
  		
  		// Fixes the prefixes of the other list items.
  		var getPrefixedItem = function(itemText){
  		
  			// The numbering flag is unset when called by autoindent.
  			if(isNumberedList === undefined){
  				isNumberedList = /^\s*\d/.test(itemText);
  			}
  			
  			// Renumber/bullet the list element.
  			itemText = itemText.replace(/^[ ]{0,3}([*+-]|\d+[.])\s/gm,
  				function( _ ){
  					return getItemPrefix();
  				});
  				
  			return itemText;
  		};
  		
  		chunk.findTags(/(\n|^)*[ ]{0,3}([*+-]|\d+[.])\s+/, null);
  		
  		if(chunk.before && !/\n$/.test(chunk.before) && !/^\n/.test(chunk.startTag)){
  			chunk.before += chunk.startTag;
  			chunk.startTag = "";
  		}
  		
  		if(chunk.startTag){
  			
  			var hasDigits = /\d+[.]/.test(chunk.startTag);
  			chunk.startTag = "";
  			chunk.selection = chunk.selection.replace(/\n[ ]{4}/g, "\n");
  			command.unwrap(chunk);
  			chunk.addBlankLines();
  			
  			if(hasDigits){
  				// Have to renumber the bullet points if this is a numbered list.
  				chunk.after = chunk.after.replace(nextItemsRegex, getPrefixedItem);
  			}
  			if(isNumberedList == hasDigits){
  				return;
  			}
  		}
  		
  		var nLinesBefore = 1;
  		
  		chunk.before = chunk.before.replace(previousItemsRegex,
  			function(itemText){
  				if(/^\s*([*+-])/.test(itemText)){
  					bullet = re.$1;
  				}
  				nLinesBefore = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
  				return getPrefixedItem(itemText);
  			});
  			
  		if(!chunk.selection){
  			chunk.selection = useDefaultText ? "List item" : " ";
  		}
  		
  		var prefix = getItemPrefix();
  		
  		var nLinesAfter = 1;
  		
  		chunk.after = chunk.after.replace(nextItemsRegex,
  			function(itemText){
  				nLinesAfter = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
  				return getPrefixedItem(itemText);
  			});
  			
  		chunk.trimWhitespace(true);
  		chunk.addBlankLines(nLinesBefore, nLinesAfter, true);
  		chunk.startTag = prefix;
  		var spaces = prefix.replace(/./g, " ");
  		command.wrap(chunk, wmd.wmd_env.lineLength - spaces.length);
  		chunk.selection = chunk.selection.replace(/\n/g, "\n" + spaces);
  		
  	};
  	
  	command.doHeading = function(chunk, postProcessing, useDefaultText){
  		
  		// Remove leading/trailing whitespace and reduce internal spaces to single spaces.
  		chunk.selection = chunk.selection.replace(/\s+/g, " ");
  		chunk.selection = chunk.selection.replace(/(^\s+|\s+$)/g, "");
  		
  		// If we clicked the button with no selected text, we just
  		// make a level 2 hash header around some default text.
  		if(!chunk.selection){
  			chunk.startTag = "## ";
  			chunk.selection = "Heading";
  			chunk.endTag = " ##";
  			return;
  		}
  		
  		var headerLevel = 0;		// The existing header level of the selected text.
  		
  		// Remove any existing hash heading markdown and save the header level.
  		chunk.findTags(/#+[ ]*/, /[ ]*#+/);
  		if(/#+/.test(chunk.startTag)){
  			headerLevel = re.lastMatch.length;
  		}
  		chunk.startTag = chunk.endTag = "";
  		
  		// Try to get the current header level by looking for - and = in the line
  		// below the selection.
  		chunk.findTags(null, /\s?(-+|=+)/);
  		if(/=+/.test(chunk.endTag)){
  			headerLevel = 1;
  		}
  		if(/-+/.test(chunk.endTag)){
  			headerLevel = 2;
  		}
  		
  		// Skip to the next line so we can create the header markdown.
  		chunk.startTag = chunk.endTag = "";
  		chunk.addBlankLines(1, 1);
  
  		// We make a level 2 header if there is no current header.
  		// If there is a header level, we substract one from the header level.
  		// If it's already a level 1 header, it's removed.
  		var headerLevelToCreate = headerLevel == 0 ? 2 : headerLevel - 1;
  		
  		if(headerLevelToCreate > 0){
  			
  			// The button only creates level 1 and 2 underline headers.
  			// Why not have it iterate over hash header levels?  Wouldn't that be easier and cleaner?
  			var headerChar = headerLevelToCreate >= 2 ? "-" : "=";
  			var len = chunk.selection.length;
  			if(len > wmd.wmd_env.lineLength){
  				len = wmd.wmd_env.lineLength;
  			}
  			chunk.endTag = "\n";
  			while(len--){
  				chunk.endTag += headerChar;
  			}
  		}
  	};	
  	
  	command.doHorizontalRule = function(chunk, postProcessing, useDefaultText){
  		chunk.startTag = "----------\n";
  		chunk.selection = "";
  		chunk.addBlankLines(2, 1, true);
  	}
  };
  
  
  Attacklab.wmd_env = {};
  Attacklab.account_options = {};
  Attacklab.wmd_defaults = {version:1, output:"HTML", lineLength:40, delayLoad:false};
  
  if(!Attacklab.wmd)
  {
  	Attacklab.wmd = function()
  	{
  		Attacklab.loadEnv = function()
  		{
  			var mergeEnv = function(env)
  			{
  				if(!env)
  				{
  					return;
  				}
  			
  				for(var key in env)
  				{
  					Attacklab.wmd_env[key] = env[key];
  				}
  			};
  			
  			mergeEnv(Attacklab.wmd_defaults);
  			mergeEnv(Attacklab.account_options);
  			mergeEnv(top["wmd_options"]);
  			Attacklab.full = true;
  			
  			var defaultButtons = "bold italic link blockquote code image ol ul heading hr";
  			Attacklab.wmd_env.buttons = Attacklab.wmd_env.buttons || defaultButtons;
  		};
  		Attacklab.loadEnv();
  
  	};
  	
  	Attacklab.wmd();
  	Attacklab.wmdBase();
  	Attacklab.Util.startEditor();
  };
  
  