text: /*
   * jQuery blockUI plugin
   * Version 1.33  (09/14/2007)
   * @requires jQuery v1.1.1
   *
   * $Id$
   *
   * Examples at: http://malsup.com/jquery/block/
   * Copyright (c) 2007 M. Alsup
   * Dual licensed under the MIT and GPL licenses:
   * http://www.opensource.org/licenses/mit-license.php
   * http://www.gnu.org/licenses/gpl.html
   */
   (function($) {
  /**
   * blockUI provides a mechanism for blocking user interaction with a page (or parts of a page).
   * This can be an effective way to simulate synchronous behavior during ajax operations without
   * locking the browser.  It will prevent user operations for the current page while it is
   * active ane will return the page to normal when it is deactivate.  blockUI accepts the following
   * two optional arguments:
   *
   *   message (String|Element|jQuery): The message to be displayed while the UI is blocked. The message
   *              argument can be a plain text string like "Processing...", an HTML string like
   *              "<h1><img src="busy.gif" /> Please wait...</h1>", a DOM element, or a jQuery object.
   *              The default message is "<h1>Please wait...</h1>"
   *
   *   css (Object):  Object which contains css property/values to override the default styles of
   *              the message.  Use this argument if you wish to override the default
   *              styles.  The css Object should be in a format suitable for the jQuery.css
   *              function.  For example:
   *              $.blockUI({
   *                    backgroundColor: '#ff8',
   *                    border: '5px solid #f00,
   *                    fontWeight: 'bold'
   *              });
   *
   * The default blocking message used when blocking the entire page is "<h1>Please wait...</h1>"
   * but this can be overridden by assigning a value to $.blockUI.defaults.pageMessage in your
   * own code.  For example:
   *
   *      $.blockUI.defaults.pageMessage = "<h1>Bitte Wartezeit</h1>";
   *
   * The default message styling can also be overridden.  For example:
   *
   *      $.extend($.blockUI.defaults.pageMessageCSS, { color: '#00a', backgroundColor: '#0f0' });
   *
   * The default styles work well for simple messages like "Please wait", but for longer messages
   * style overrides may be necessary.
   *
   * @example  $.blockUI();
   * @desc prevent user interaction with the page (and show the default message of 'Please wait...')
   *
   * @example  $.blockUI( { backgroundColor: '#f00', color: '#fff'} );
   * @desc prevent user interaction and override the default styles of the message to use a white on red color scheme
   *
   * @example  $.blockUI('Processing...');
   * @desc prevent user interaction and display the message "Processing..." instead of the default message
   *
   * @name blockUI
   * @param String|jQuery|Element message Message to display while the UI is blocked
   * @param Object css Style object to control look of the message
   * @cat Plugins/blockUI
   */
  $.blockUI = function(msg, css, opts) {
      $.blockUI.impl.install(window, msg, css, opts);
  };
  
  // expose version number so other plugins can interogate
  $.blockUI.version = 1.33;
  
  /**
   * unblockUI removes the UI block that was put in place by blockUI
   *
   * @example  $.unblockUI();
   * @desc unblocks the page
   *
   * @name unblockUI
   * @cat Plugins/blockUI
   */
  $.unblockUI = function(opts) {
      $.blockUI.impl.remove(window, opts);
  };
  
  /**
   * Blocks user interaction with the selected elements.  (Hat tip: Much of
   * this logic comes from Brandon Aaron's bgiframe plugin.  Thanks, Brandon!)
   * By default, no message is displayed when blocking elements.
   *
   * @example  $('div.special').block();
   * @desc prevent user interaction with all div elements with the 'special' class.
   *
   * @example  $('div.special').block('Please wait');
   * @desc prevent user interaction with all div elements with the 'special' class
   * and show a message over the blocked content.
   *
   * @name block
   * @type jQuery
   * @param String|jQuery|Element message Message to display while the element is blocked
   * @param Object css Style object to control look of the message
   * @cat Plugins/blockUI
   */
  $.fn.block = function(msg, css, opts) {
  	
      return this.each(function() {
  		if (!this.$pos_checked) {
              if ($.css(this,"position") == 'static')
                  this.style.position = 'relative';
              if ($.browser.msie) this.style.zoom = 1; // force 'hasLayout' in IE
              this.$pos_checked = 1;
          }
          $.blockUI.impl.install(this, msg, css, opts);
      });
  };
  
  /**
   * Unblocks content that was blocked by "block()"
   *
   * @example  $('div.special').unblock();
   * @desc unblocks all div elements with the 'special' class.
   *
   * @name unblock
   * @type jQuery
   * @cat Plugins/blockUI
   */
  $.fn.unblock = function(opts) {
      return this.each(function() {
          $.blockUI.impl.remove(this, opts);
      });
  };
  
  /**
   * displays the first matched element in a "display box" above a page overlay.
   *
   * @example  $('#myImage').displayBox();
   * @desc displays "myImage" element in a box
   *
   * @name displayBox
   * @type jQuery
   * @cat Plugins/blockUI
   */
  $.fn.displayBox = function(css, fn, isFlash) {
      var msg = this[0];
      if (!msg) return;
      var $msg = $(msg);
      css = css || {};
  
      var w = $msg.width()  || $msg.attr('width')  || css.width  || $.blockUI.defaults.displayBoxCSS.width;
      var h = $msg.height() || $msg.attr('height') || css.height || $.blockUI.defaults.displayBoxCSS.height ;
      if (w[w.length-1] == '%') {
          var ww = document.documentElement.clientWidth || document.body.clientWidth;
          w = parseInt(w) || 100;
          w = (w * ww) / 100;
      }
      if (h[h.length-1] == '%') {
          var hh = document.documentElement.clientHeight || document.body.clientHeight;
          h = parseInt(h) || 100;
          h = (h * hh) / 100;
      }
  
      var ml = '-' + parseInt(w)/2 + 'px';
      var mt = '-' + parseInt(h)/2 + 'px';
  
      // supress opacity on overlay if displaying flash content on mac/ff platform
      var ua = navigator.userAgent.toLowerCase();
      var opts = {
          displayMode: fn || 1,
          noalpha: isFlash && /mac/.test(ua) && /firefox/.test(ua)
      };
  
      $.blockUI.impl.install(window, msg, { width: w, height: h, marginTop: mt, marginLeft: ml }, opts);
  };
  
  
  // override these in your code to change the default messages and styles
  $.blockUI.defaults = {
      // the message displayed when blocking the entire page
      pageMessage:    '<h1>Please wait...</h1>',
      // the message displayed when blocking an element
      elementMessage: '', // none
      // styles for the overlay iframe
      overlayCSS:  { backgroundColor: '#fff', opacity: '0.5' },
      // styles for the message when blocking the entire page
      pageMessageCSS:    { width:'0px', margin:'0px 0 0 0px', top:'0px', left:'0px', textAlign:'center', color:'#000', backgroundColor:'#fff', border:'0px solid #aaa' },
      // styles for the message when blocking an element
      elementMessageCSS: { width:'250px', padding:'10px', textAlign:'center', backgroundColor:'#fff'},
      // styles for the displayBox
      displayBoxCSS: { width: '400px', height: '400px', top:'50%', left:'50%' },
      // allow body element to be stetched in ie6
      ie6Stretch: 1,
      // supress tab nav from leaving blocking content?
      allowTabToLeave: 0,
      // Title attribute for overlay when using displayBox
      closeMessage: 'Click to close',
      // use fadeOut effect when unblocking (can be overridden on unblock call)
      fadeOut:  1,
      // fadeOut transition time in millis
      fadeTime: 400
  };
  
  // the gory details
  $.blockUI.impl = {
      box: null,
      boxCallback: null,
      pageBlock: null,
      pageBlockEls: [],
      op8: window.opera && window.opera.version() < 9,
      ie6: $.browser.msie && /MSIE 6.0/.test(navigator.userAgent),
      install: function(el, msg, css, opts) {
      	
          opts = opts || {};
          this.boxCallback = typeof opts.displayMode == 'function' ? opts.displayMode : null;
          this.box = opts.displayMode ? msg : null;
          var full = (el == window);
  
          // use logical settings for opacity support based on browser but allow overrides via opts arg
          var noalpha = this.op8 || $.browser.mozilla && /Linux/.test(navigator.platform);
          if (typeof opts.alphaOverride != 'undefined')
              noalpha = opts.alphaOverride == 0 ? 1 : 0;
  
          if (full && this.pageBlock) this.remove(window, {fadeOut:0});
          // check to see if we were only passed the css object (a literal)
          if (msg && typeof msg == 'object' && !msg.jquery && !msg.nodeType) {
              css = msg;
              msg = null;
          }
          msg = msg ? (msg.nodeType ? $(msg) : msg) : full ? $.blockUI.defaults.pageMessage : $.blockUI.defaults.elementMessage;
          if (opts.displayMode)
              var basecss = jQuery.extend({}, $.blockUI.defaults.displayBoxCSS);
          else
              var basecss = jQuery.extend({}, full ? $.blockUI.defaults.pageMessageCSS : $.blockUI.defaults.elementMessageCSS);
          css = jQuery.extend(basecss, css || {});
          var f = ($.browser.msie) ? $('<iframe class="blockUI" style="z-index:1000;border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="javascript:false;"></iframe>')
                                   : $('<div class="blockUI" style="display:none"></div>');
          var w = $('<div class="blockUI" style="z-index:1001;cursor:wait;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>');
          var m = full ? $('<div class="blockUI blockMsg" style="z-index:1002;cursor:wait;padding:0;position:fixed"></div>')
                       : $('<div class="blockUI" style="display:none;z-index:1002;cursor:wait;position:absolute"></div>');
          w.css('position', full ? 'fixed' : 'absolute');
          if (msg) m.css(css);
          
          //add by xiening
          m.css("top",(window.screen.availHeight - msg.height())/2 + "px");
          m.css("left",(window.screen.availWidth - msg.width())/2 + "px");
          
          if (!noalpha) w.css($.blockUI.defaults.overlayCSS);
          if (this.op8) w.css({ width:''+el.clientWidth,height:''+el.clientHeight }); // lame
          if ($.browser.msie) f.css('opacity','0.0');
  
          $([f[0],w[0],m[0]]).appendTo(full ? 'body' : el);
  
          // ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling)
          var expr = $.browser.msie && (!$.boxModel || $('object,embed', full ? null : el).length > 0);
          if (this.ie6 || expr) {
              // stretch content area if it's short
              if (full && $.blockUI.defaults.ie6Stretch && $.boxModel)
                  $('html,body').css('height','100%');
  
              // fix ie6 problem when blocked element has a border width
              if ((this.ie6 || !$.boxModel) && !full) {
                  var t = this.sz(el,'borderTopWidth'), l = this.sz(el,'borderLeftWidth');
                  var fixT = t ? '(0 - '+t+')' : 0;
                  var fixL = l ? '(0 - '+l+')' : 0;
              }
              // simulate fixed position
              $.each([f,w,m], function(i,o) {
                  var s = o[0].style;
                  s.position = 'absolute';
                  if (i < 2) {
                      full ? $(o[0]).css("height",(document.body.scrollHeight > document.body.offsetHeight ? document.body.scrollHeight : document.body.offsetHeight) + "px")
                           : $(o[0]).css("height",this.parentNode.offsetHeight + "px");
                      full ? $(o[0]).css('width',(jQuery.boxModel && document.documentElement.clientWidth || document.body.clientWidth) + "px")
                           : $(o[0]).css('width',this.parentNode.offsetWidth + "px");
                      if (fixL) $(o[0]).css('left', fixL);
                      if (fixT) $(o[0]).css('top', fixT);
                  }
              });
              
          }
          
          if (opts.displayMode) {
              w.css('cursor','default').attr('title', $.blockUI.defaults.closeMessage);
              m.css('cursor','default');
              $([f[0],w[0],m[0]]).removeClass('blockUI').addClass('displayBox');
              $().click($.blockUI.impl.boxHandler).bind('keypress', $.blockUI.impl.boxHandler);
          }
          else
              this.bind(1, el);
          m.append(msg).show();
          if (msg.jquery) msg.show();
          
          if (opts.displayMode) return;
          if (full) {
              this.pageBlock = m[0];
              this.pageBlockEls = $(':input:enabled:visible',this.pageBlock);
              setTimeout(this.focus, 20);
          }
          else this.center(m[0]);
          	
      },
      remove: function(el, opts) {
          var o = $.extend({}, $.blockUI.defaults, opts);
          this.bind(0, el);
          var full = el == window;
          var els = full ? $('body').children().filter('.blockUI') : $('.blockUI', el);
          if (full) this.pageBlock = this.pageBlockEls = null;
  
          if (o.fadeOut) {
              els.fadeOut(o.fadeTime, function() {
                  if (this.parentNode) this.parentNode.removeChild(this);
              });
          }
          else els.remove();
      },
      boxRemove: function(el) {
          $().unbind('click',$.blockUI.impl.boxHandler).unbind('keypress', $.blockUI.impl.boxHandler);
          if (this.boxCallback)
              this.boxCallback(this.box);
          $('body .displayBox').hide().remove();
      },
      // event handler to suppress keyboard/mouse events when blocking
      handler: function(e) {
          if (e.keyCode && e.keyCode == 9) {
              if ($.blockUI.impl.pageBlock && !$.blockUI.defaults.allowTabToLeave) {
                  var els = $.blockUI.impl.pageBlockEls;
                  var fwd = !e.shiftKey && e.target == els[els.length-1];
                  var back = e.shiftKey && e.target == els[0];
                  if (fwd || back) {
                      setTimeout(function(){$.blockUI.impl.focus(back)},10);
                      return false;
                  }
              }
          }
          if ($(e.target).parents('div.blockMsg').length > 0)
              return true;
          return $(e.target).parents().children().filter('div.blockUI').length == 0;
      },
      boxHandler: function(e) {
          if ((e.keyCode && e.keyCode == 27) || (e.type == 'click' && $(e.target).parents('div.blockMsg').length == 0))
              $.blockUI.impl.boxRemove();
          return true;
      },
      // bind/unbind the handler
      bind: function(b, el) {
          var full = el == window;
          // don't bother unbinding if there is nothing to unbind
          if (!b && (full && !this.pageBlock || !full && !el.$blocked)) return;
          if (!full) el.$blocked = b;
          var $e = $(el).find('a,:input');
          $.each(['mousedown','mouseup','keydown','keypress','click'], function(i,o) {
              $e[b?'bind':'unbind'](o, $.blockUI.impl.handler);
          });
      },
      focus: function(back) {
          if (!$.blockUI.impl.pageBlockEls) return;
          var e = $.blockUI.impl.pageBlockEls[back===true ? $.blockUI.impl.pageBlockEls.length-1 : 0];
          if (e) e.focus();
      },
      center: function(el) {
  		var p = el.parentNode, s = el.style;
          var l = ((p.offsetWidth - el.offsetWidth)/2) - this.sz(p,'borderLeftWidth');
          var t = ((p.offsetHeight - el.offsetHeight)/2) - this.sz(p,'borderTopWidth');
          s.left = l > 0 ? (l+'px') : '0';
          s.top  = t > 0 ? (t+'px') : '0';
      },
      sz: function(el, p) { return parseInt($.css(el,p))||0; }
  };
  
  })(jQuery);
  