/*
	Copyright (c) 2004-2008, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/book/dojo-book-0-9/introduction/licensing
*/


if(!dojo._hasResource["dijit._editor.RichText"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dijit._editor.RichText"] = true;
dojo.provide("dijit._editor.RichText");

dojo.require("dijit._Widget");
dojo.require("dijit._editor.selection");
dojo.require("dijit._editor.html");
dojo.require("dojo.i18n");
dojo.requireLocalization("dijit", "Textarea", null, "ROOT");

// used to restore content when user leaves this page then comes back
// but do not try doing dojo.doc.write if we are using xd loading.
// dojo.doc.write will only work if RichText.js is included in the dojo.js
// file. If it is included in dojo.js and you want to allow rich text saving
// for back/forward actions, then set dojo.config.allowXdRichTextSave = true.
if(!dojo.config["useXDomain"] || dojo.config["allowXdRichTextSave"]){
	if(dojo._postLoad){
		(function(){
			var savetextarea = dojo.doc.createElement('textarea');
			savetextarea.id = dijit._scopeName + "._editor.RichText.savedContent";
			var s = savetextarea.style;
			s.display='none';
			s.position='absolute';
			s.top="-100px";
			s.left="-100px";
			s.height="3px";
			s.width="3px";
			dojo.body().appendChild(savetextarea);
		})();
	}else{
		//dojo.body() is not available before onLoad is fired
		try{
			dojo.doc.write('<textarea id="' + dijit._scopeName + '._editor.RichText.savedContent" ' +
				'style="display:none;position:absolute;top:-100px;left:-100px;height:3px;width:3px;overflow:hidden;"></textarea>');
		}catch(e){ }
	}
}
dojo.declare("dijit._editor.RichText", dijit._Widget, {
	constructor: function(){
		// summary:
		//		dijit._editor.RichText is the core of the WYSIWYG editor in dojo, which
		//		provides the basic editing features. It also encapsulates the differences
		//		of different js engines for various browsers
		//
		// contentPreFilters: Array
		//		pre content filter function register array.
		//		these filters will be executed before the actual
		//		editing area get the html content
		this.contentPreFilters = [];

		// contentPostFilters: Array
		//		post content filter function register array.
		//		these will be used on the resulting html
		//		from contentDomPostFilters. The resuling
		//		content is the final html (returned by getValue())
		this.contentPostFilters = [];

		// contentDomPreFilters: Array
		//		pre content dom filter function register array.
		//		these filters are applied after the result from
		//		contentPreFilters are set to the editing area
		this.contentDomPreFilters = [];

		// contentDomPostFilters: Array
		//		post content dom filter function register array.
		//		these filters are executed on the editing area dom
		//		the result from these will be passed to contentPostFilters
		this.contentDomPostFilters = [];

		// editingAreaStyleSheets: Array
		//		array to store all the stylesheets applied to the editing area
		this.editingAreaStyleSheets=[];

		this._keyHandlers = {};
		this.contentPreFilters.push(dojo.hitch(this, "_preFixUrlAttributes"));
		if(dojo.isMoz){
			this.contentPreFilters.push(this._fixContentForMoz);
			this.contentPostFilters.push(this._removeMozBogus);
		}else if(dojo.isSafari){
			this.contentPostFilters.push(this._removeSafariBogus);
		}
		//this.contentDomPostFilters.push(this._postDomFixUrlAttributes);

		this.onLoadDeferred = new dojo.Deferred();
	},

	// inheritWidth: Boolean
	//		whether to inherit the parent's width or simply use 100%
	inheritWidth: false,

	// focusOnLoad: Boolean
	//		whether focusing into this instance of richtext when page onload
	focusOnLoad: false,

	// name: String
	//		If a save name is specified the content is saved and restored when the user
	//		leave this page can come back, or if the editor is not properly closed after
	//		editing has started.
	name: "",

	// styleSheets: String
	//		semicolon (";") separated list of css files for the editing area
	styleSheets: "",

	// _content: String
	//		temporary content storage
	_content: "",

	// height: String
	//		set height to fix the editor at a specific height, with scrolling.
	//		By default, this is 300px. If you want to have the editor always
	//		resizes to accommodate the content, use AlwaysShowToolbar plugin
	//		and set height=""
	height: "300px",

	// minHeight: String
	//		The minimum height that the editor should have
	minHeight: "1em",
	
	// isClosed: Boolean
	isClosed: true,

	// isLoaded: Boolean
	isLoaded: false,

	// _SEPARATOR: String
	//		used to concat contents from multiple textareas into a single string
	_SEPARATOR: "@@**%%__RICHTEXTBOUNDRY__%%**@@",

	// onLoadDeferred: dojo.Deferred
	//		deferred which is fired when the editor finishes loading
	onLoadDeferred: null,

	postCreate: function(){
		// summary: init
		dojo.publish(dijit._scopeName + "._editor.RichText::init", [this]);
		this.open();
		this.setupDefaultShortcuts();
	},

	setupDefaultShortcuts: function(){
		// summary: add some default key handlers
		// description:
		// 		Overwrite this to setup your own handlers. The default
		// 		implementation does not use Editor commands, but directly
		//		executes the builtin commands within the underlying browser
		//		support.
		var exec = function(cmd, arg){
			return arguments.length == 1 ? function(){ this.execCommand(cmd); } :
				function(){ this.execCommand(cmd, arg); };
		};

		var ctrlKeyHandlers = { b: exec("bold"),
			i: exec("italic"),
			u: exec("underline"),
			a: exec("selectall"),
			s: function(){ this.save(true); },

			"1": exec("formatblock", "h1"),
			"2": exec("formatblock", "h2"),
			"3": exec("formatblock", "h3"),
			"4": exec("formatblock", "h4"),

			"\\": exec("insertunorderedlist") };

		if(!dojo.isIE){
			ctrlKeyHandlers.Z = exec("redo"); //FIXME: undo?
		}

		for(var key in ctrlKeyHandlers){
			this.addKeyHandler(key, this.KEY_CTRL, ctrlKeyHandlers[key]);
		}
	},

	// events: Array
	//		 events which should be connected to the underlying editing area
	events: ["onKeyPress", "onKeyDown", "onKeyUp", "onClick"],

	// events: Array
	//		 events which should be connected to the underlying editing
	//		 area, events in this array will be addListener with
	//		 capture=true
	captureEvents: [],

	_editorCommandsLocalized: false,
	_localizeEditorCommands: function(){
		if(this._editorCommandsLocalized){
			return;
		}
		this._editorCommandsLocalized = true;

		//in IE, names for blockformat is locale dependent, so we cache the values here

		//if the normal way fails, we try the hard way to get the list

		//do not use _cacheLocalBlockFormatNames here, as it will
		//trigger security warning in IE7

		//in the array below, ul can not come directly after ol,
		//otherwise the queryCommandValue returns Normal for it
		var formats = ['p', 'pre', 'address', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'ol', 'div', 'ul'];
		var localhtml = "", format, i=0;
		while((format=formats[i++])){
			if(format.charAt(1) != 'l'){
				localhtml += "<"+format+"><span>content</span></"+format+">";
			}else{
				localhtml += "<"+format+"><li>content</li></"+format+">";
			}
		}
		//queryCommandValue returns empty if we hide editNode, so move it out of screen temporary
		var div=dojo.doc.createElement('div');
		div.style.position = "absolute";
		div.style.left = "-2000px";
		div.style.top = "-2000px";
		dojo.doc.body.appendChild(div);
		div.innerHTML = localhtml;
		var node = div.firstChild;
		while(node){
			dijit._editor.selection.selectElement(node.firstChild);
			dojo.withGlobal(this.window, "selectElement", dijit._editor.selection, [node.firstChild]);
			var nativename = node.tagName.toLowerCase();
			this._local2NativeFormatNames[nativename] = dojo.doc.queryCommandValue("formatblock");//this.queryCommandValue("formatblock");
			this._native2LocalFormatNames[this._local2NativeFormatNames[nativename]] = nativename;
			node = node.nextSibling;
		}
		dojo.doc.body.removeChild(div);
	},

	open: function(/*DomNode?*/element){
		// summary:
		//		Transforms the node referenced in this.domNode into a rich text editing
		//		node. This will result in the creation and replacement with an <iframe>
		//		if designMode(FF)/contentEditable(IE) is used.

		if((!this.onLoadDeferred)||(this.onLoadDeferred.fired >= 0)){
			this.onLoadDeferred = new dojo.Deferred();
		}

		if(!this.isClosed){ this.close(); }
		dojo.publish(dijit._scopeName + "._editor.RichText::open", [ this ]);

		this._content = "";
		if((arguments.length == 1)&&(element["nodeName"])){ this.domNode = element; } // else unchanged

		var html;
		if(	(this.domNode["nodeName"])&&
			(this.domNode.nodeName.toLowerCase() == "textarea")){
			// if we were created from a textarea, then we need to create a
			// new editing harness node.
			this.textarea = this.domNode;
			this.name=this.textarea.name;
			html = this._preFilterContent(this.textarea.value);
			this.domNode = dojo.doc.createElement("div");
			this.domNode.setAttribute('widgetId',this.id);
			this.textarea.removeAttribute('widgetId');
			this.domNode.cssText = this.textarea.cssText;
			this.domNode.className += " "+this.textarea.className;
			dojo.place(this.domNode, this.textarea, "before");
			var tmpFunc = dojo.hitch(this, function(){
				//some browsers refuse to submit display=none textarea, so
				//move the textarea out of screen instead
				dojo.attr(this.textarea, 'tabIndex', '-1');
				with(this.textarea.style){
					display = "block";
					position = "absolute";
					left = top = "-1000px";

					if(dojo.isIE){ //nasty IE bug: abnormal formatting if overflow is not hidden
						this.__overflow = overflow;
						overflow = "hidden";
					}
				}
			});
			if(dojo.isIE){
				setTimeout(tmpFunc, 10);
			}else{
				tmpFunc();
			}

			// this.domNode.innerHTML = html;

//				if(this.textarea.form){
//					// FIXME: port: this used to be before advice!!!
//					dojo.connect(this.textarea.form, "onsubmit", this, function(){
//						// FIXME: should we be calling close() here instead?
//						this.textarea.value = this.getValue();
//					});
//				}
		}else{
			html = this._preFilterContent(dijit._editor.getChildrenHtml(this.domNode));
			this.domNode.innerHTML = '';
		}
		if(html == ""){ html = "&nbsp;"; }

		var content = dojo.contentBox(this.domNode);
		// var content = dojo.contentBox(this.srcNodeRef);
		this._oldHeight = content.h;
		this._oldWidth = content.w;

		// If we're a list item we have to put in a blank line to force the
		// bullet to nicely align at the top of text
		if(	(this.domNode["nodeName"]) &&
			(this.domNode.nodeName == "LI") ){
			this.domNode.innerHTML = " <br>";
		}

		this.editingArea = dojo.doc.createElement("div");
		this.domNode.appendChild(this.editingArea);

		if(this.name != "" && (!dojo.config["useXDomain"] || dojo.config["allowXdRichTextSave"])){
			var saveTextarea = dojo.byId(dijit._scopeName + "._editor.RichText.savedContent");
			if(saveTextarea.value != ""){
				var datas = saveTextarea.value.split(this._SEPARATOR), i=0, dat;
				while((dat=datas[i++])){
					var data = dat.split(":");
					if(data[0] == this.name){
						html = data[1];
						datas.splice(i, 1);
						break;
					}
				}
			}

			// FIXME: need to do something different for Opera/Safari
			this.connect(window, "onbeforeunload", "_saveContent");
			// dojo.connect(window, "onunload", this, "_saveContent");
		}

		this.isClosed = false;
		// Safari's selections go all out of whack if we do it inline,
		// so for now IE is our only hero
		//if(typeof dojo.doc.body.contentEditable != "undefined"){
		if(dojo.isIE || dojo.isSafari || dojo.isOpera){ // contentEditable, easy
			var burl = dojo.moduleUrl("dojo", "resources/blank.html")+"";
			var ifr = this.editorObject = this.iframe = dojo.doc.createElement('iframe');
			ifr.id = this.id+"_iframe";
			ifr.src = burl;
			ifr.style.border = "none";
			ifr.style.width = "100%";
			ifr.frameBorder = 0;
			// ifr.style.scrolling = this.height ? "auto" : "vertical";
			this.editingArea.appendChild(ifr);
			var h = null; // set later in non-ie6 branch
			var loadFunc = dojo.hitch( this, function(){
				if(h){ dojo.disconnect(h); h = null; }
				this.window = ifr.contentWindow;
				var d = this.document = this.window.document;
				d.open();
				d.write(this._getIframeDocTxt(html));
				d.close();

				if(dojo.isIE >= 7){
					if(this.height){
						ifr.style.height = this.height;
					}
					if(this.minHeight){
						ifr.style.minHeight = this.minHeight;
					}
				}else{
					ifr.style.height = this.height ? this.height : this.minHeight;
				}

				if(dojo.isIE){
					this._localizeEditorCommands();
				}

				this.onLoad();
				this.savedContent = this.getValue(true);
			});
			if(dojo.isIE && dojo.isIE < 7){ // IE 6 is a steaming pile...
				var t = setInterval(function(){
					if(ifr.contentWindow.isLoaded){
						clearInterval(t);
						loadFunc();
					}
				}, 100);
			}else{ // blissful sanity!
				h = dojo.connect(
					((dojo.isIE) ? ifr.contentWindow : ifr), "onload", loadFunc
				);
			}
		}else{ // designMode in iframe
			this._drawIframe(html);
			this.savedContent = this.getValue(true);
		}

		// TODO: this is a guess at the default line-height, kinda works
		if(this.domNode.nodeName == "LI"){ this.domNode.lastChild.style.marginTop = "-1.2em"; }
		this.domNode.className += " RichTextEditable";
	},

	//static cache variables shared among all instance of this class
	_local2NativeFormatNames: {},
	_native2LocalFormatNames: {},
	_localizedIframeTitles: null,

	_getIframeDocTxt: function(/* String */ html){
		var _cs = dojo.getComputedStyle(this.domNode);
		if(dojo.isIE || (!this.height && !dojo.isMoz)){
			html="<div>"+html+"</div>";
		}
		var font = [ _cs.fontWeight, _cs.fontSize, _cs.fontFamily ].join(" ");

		// line height is tricky - applying a units value will mess things up.
		// if we can't get a non-units value, bail out.
		var lineHeight = _cs.lineHeight;
		if(lineHeight.indexOf("px") >= 0){
			lineHeight = parseFloat(lineHeight)/parseFloat(_cs.fontSize);
			// console.debug(lineHeight);
		}else if(lineHeight.indexOf("em")>=0){
			lineHeight = parseFloat(lineHeight);
		}else{
			lineHeight = "1.0";
		}
		return [
			this.isLeftToRight() ? "<html><head>" : "<html dir='rtl'><head>",
			(dojo.isMoz ? "<title>" + this._localizedIframeTitles.iframeEditTitle + "</title>" : ""),
			"<style>",
			"body,html {",
			"	background:transparent;",
			"	font:", font, ";",
			"	padding: 1em 0 0 0;",
			"	margin: -1em 0 0 0;", // remove extraneous vertical scrollbar on safari and firefox
			"	height: 100%;",
			"}",
			// TODO: left positioning will cause contents to disappear out of view
			//	   if it gets too wide for the visible area
			"body{",
			"	top:0px; left:0px; right:0px;",
				((this.height||dojo.isOpera) ? "" : "position: fixed;"),
			// FIXME: IE 6 won't understand min-height?
			"	min-height:", this.minHeight, ";",
			"	line-height:", lineHeight,
			"}",
			"p{ margin: 1em 0 !important; }",
			(this.height ? // height:auto undoes the height:100%
				"" : "body,html{height:auto;overflow-y:hidden;/*for IE*/} body > div {overflow-x:auto;/*for FF to show vertical scrollbar*/}"
			),
			"li > ul:-moz-first-node, li > ol:-moz-first-node{ padding-top: 1.2em; } ",
			"li{ min-height:1.2em; }",
			"</style>",
			this._applyEditingAreaStyleSheets(),
			"</head><body>"+html+"</body></html>"
		].join(""); // String
	},

	_drawIframe: function(/*String*/html){
		// summary:
		//		Draws an iFrame using the existing one if one exists.
		//		Used by Mozilla, Safari, and Opera

		if(!this.iframe){
			var ifr = this.iframe = dojo.doc.createElement("iframe");
			ifr.id=this.id;
			// this.iframe.src = "about:blank";
			// dojo.doc.body.appendChild(this.iframe);
			// console.debug(this.iframe.contentDocument.open());
			// dojo.body().appendChild(this.iframe);
			var ifrs = ifr.style;
			// ifrs.border = "1px solid black";
			ifrs.border = "none";
			ifrs.lineHeight = "0"; // squash line height
			ifrs.verticalAlign = "bottom";
//			ifrs.scrolling = this.height ? "auto" : "vertical";
			this.editorObject = this.iframe;
			// get screen reader text for mozilla here, too
			this._localizedIframeTitles = dojo.i18n.getLocalization("dijit", "Textarea");
			// need to find any associated label element and update iframe document title
			var label=dojo.query('label[for="'+this.id+'"]');
			if(label.length){
				this._localizedIframeTitles.iframeEditTitle = label[0].innerHTML + " " + this._localizedIframeTitles.iframeEditTitle;
			}
		}
		// opera likes this to be outside the with block
		//	this.iframe.src = "javascript:void(0)";//dojo.uri.dojoUri("src/widget/templates/richtextframe.html") + ((dojo.doc.domain != currentDomain) ? ("#"+dojo.doc.domain) : "");
		this.iframe.style.width = this.inheritWidth ? this._oldWidth : "100%";

		if(this.height){
			this.iframe.style.height = this.height;
		}else{
			this.iframe.height = this._oldHeight;
		}

		var tmpContent;
		if(this.textarea){
			tmpContent = this.srcNodeRef;
		}else{
			tmpContent = dojo.doc.createElement('div');
			tmpContent.style.display="none";
			tmpContent.innerHTML = html;
			//append tmpContent to under the current domNode so that the margin
			//calculation below is correct
			this.editingArea.appendChild(tmpContent);
		}

		this.editingArea.appendChild(this.iframe);

		//do we want to show the content before the editing area finish loading here?
		//if external style sheets are used for the editing area, the appearance now
		//and after loading of the editing area won't be the same (and padding/margin
		//calculation above may not be accurate)
		//	tmpContent.style.display = "none";
		//	this.editingArea.appendChild(this.iframe);

		var _iframeInitialized = false;
		// console.debug(this.iframe);
		// var contentDoc = this.iframe.contentWindow.document;


		// note that on Safari lower than 420+, we have to get the iframe
		// by ID in order to get something w/ a contentDocument property

		var contentDoc = this.iframe.contentDocument;
		contentDoc.open();
		if(dojo.isAIR){
			contentDoc.body.innerHTML = html;
		}else{
			contentDoc.write(this._getIframeDocTxt(html));
		}
		contentDoc.close();

		// now we wait for onload. Janky hack!
		var ifrFunc = dojo.hitch(this, function(){
			if(!_iframeInitialized){
				_iframeInitialized = true;
			}else{ return; }
			if(!this.editNode){
				try{
					if(this.iframe.contentWindow){
						this.window = this.iframe.contentWindow;
						this.document = this.iframe.contentWindow.document
					}else if(this.iframe.contentDocument){
						// for opera
						this.window = this.iframe.contentDocument.window;
						this.document = this.iframe.contentDocument;
					}
					if(!this.document.body){
						throw 'Error';
					}
				}catch(e){
					setTimeout(ifrFunc,500);
					_iframeInitialized = false;
					return;
				}

				dojo._destroyElement(tmpContent);
				this.onLoad();
			}else{
				dojo._destroyElement(tmpContent);
				this.editNode.innerHTML = html;
				this.onDisplayChanged();
			}
			this._preDomFilterContent(this.editNode);
		});

		ifrFunc();
	},

	_applyEditingAreaStyleSheets: function(){
		// summary:
		//		apply the specified css files in styleSheets
		var files = [];
		if(this.styleSheets){
			files = this.styleSheets.split(';');
			this.styleSheets = '';
		}

		//empty this.editingAreaStyleSheets here, as it will be filled in addStyleSheet
		files = files.concat(this.editingAreaStyleSheets);
		this.editingAreaStyleSheets = [];

		var text='', i=0, url;
		while((url=files[i++])){
			var abstring = (new dojo._Url(dojo.global.location, url)).toString();
			this.editingAreaStyleSheets.push(abstring);
			text += '<link rel="stylesheet" type="text/css" href="'+abstring+'"/>'
		}
		return text;
	},

	addStyleSheet: function(/*dojo._Url*/uri){
		// summary:
		//		add an external stylesheet for the editing area
		// uri:	a dojo.uri.Uri pointing to the url of the external css file
		var url=uri.toString();

		//if uri is relative, then convert it to absolute so that it can be resolved correctly in iframe
		if(url.charAt(0) == '.' || (url.charAt(0) != '/' && !uri.host)){
			url = (new dojo._Url(dojo.global.location, url)).toString();
		}

		if(dojo.indexOf(this.editingAreaStyleSheets, url) > -1){
//			console.debug("dijit._editor.RichText.addStyleSheet: Style sheet "+url+" is already applied");
			return;
		}

		this.editingAreaStyleSheets.push(url);
		if(this.document.createStyleSheet){ //IE
			this.document.createStyleSheet(url);
		}else{ //other browser
			var head = this.document.getElementsByTagName("head")[0];
			var stylesheet = this.document.createElement("link");
			with(stylesheet){
				rel="stylesheet";
				type="text/css";
				href=url;
			}
			head.appendChild(stylesheet);
		}
	},

	removeStyleSheet: function(/*dojo._Url*/uri){
		// summary:
		//		remove an external stylesheet for the editing area
		var url=uri.toString();
		//if uri is relative, then convert it to absolute so that it can be resolved correctly in iframe
		if(url.charAt(0) == '.' || (url.charAt(0) != '/' && !uri.host)){
			url = (new dojo._Url(dojo.global.location, url)).toString();
		}
		var index = dojo.indexOf(this.editingAreaStyleSheets, url);
		if(index == -1){
//			console.debug("dijit._editor.RichText.removeStyleSheet: Style sheet "+url+" has not been applied");
			return;
		}
		delete this.editingAreaStyleSheets[index];
		dojo.withGlobal(this.window,'query', dojo, ['link:[href="'+url+'"]']).orphan()
	},

	disabled: true,
	_mozSettingProps: ['styleWithCSS','insertBrOnReturn'],
	setDisabled: function(/*Boolean*/ disabled){
		if(dojo.isIE || dojo.isSafari || dojo.isOpera){
			if(dojo.isIE){ this.editNode.unselectable = "on"; } // prevent IE from setting focus
			this.editNode.contentEditable = !disabled;
			if(dojo.isIE){
				var _this = this;
				setTimeout(function(){ _this.editNode.unselectable = "off"; }, 0);
			}
		}else{ //moz
			if(disabled){
				//AP: why isn't this set in the constructor, or put in mozSettingProps as a hash?
				this._mozSettings=[false,this.blockNodeForEnter==='BR'];
			}
			this.document.designMode=(disabled?'off':'on');
			if(!disabled && this._mozSettings){
				dojo.forEach(this._mozSettingProps, function(s,i){
					this.document.execCommand(s,false,this._mozSettings[i]);
				},this);
			}
//			this.document.execCommand('contentReadOnly', false, disabled);
//				if(disabled){
//					this.blur(); //to remove the blinking caret
//				}
		}
		this.disabled = disabled;
	},

/* Event handlers
 *****************/

	_isResized: function(){ return false; },

	onLoad: function(/* Event */ e){
		// summary: handler after the content of the document finishes loading
		this.isLoaded = true;
		if(!this.window.__registeredWindow){
			this.window.__registeredWindow=true;
			dijit.registerWin(this.window);
		}
		if(!dojo.isIE && (this.height || dojo.isMoz)){
			this.editNode=this.document.body;
		}else{
			this.editNode=this.document.body.firstChild;
			var _this = this;
			if(dojo.isIE){ // #4996 IE wants to focus the BODY tag
				var tabStop = this.tabStop = dojo.doc.createElement('<div tabIndex=-1>');
				this.editingArea.appendChild(tabStop);
				this.iframe.onfocus = function(){ _this.editNode.setActive(); }
			}
		}

		try{
			this.setDisabled(false);
		}catch(e){
			// Firefox throws an exception if the editor is initially hidden
			// so, if this fails, try again onClick by adding "once" advice
			var handle = dojo.connect(this, "onClick", this, function(){
				this.setDisabled(false);
				dojo.disconnect(handle);
			});
		}

		this._preDomFilterContent(this.editNode);

		var events=this.events.concat(this.captureEvents),i=0,et;
		while((et=events[i++])){
			this.connect(this.document, et.toLowerCase(), et);
		}
		if(!dojo.isIE){
			try{ // sanity check for Mozilla
			//AP: what's the point of this?
//					this.document.execCommand("useCSS", false, true); // old moz call
				this.document.execCommand("styleWithCSS", false, false); // new moz call
				//this.document.execCommand("insertBrOnReturn", false, false); // new moz call
			}catch(e2){ }
			// FIXME: when scrollbars appear/disappear this needs to be fired
		}else{ // IE contentEditable
			// give the node Layout on IE
			this.connect(this.document, "onmousedown", "_onMouseDown"); // #4996 fix focus
			this.editNode.style.zoom = 1.0;
		}

		if(this.focusOnLoad){
			setTimeout(dojo.hitch(this, "focus"), 0); // have to wait for IE to set unselectable=off
		}

		this.onDisplayChanged(e);
		if(this.onLoadDeferred){
			this.onLoadDeferred.callback(true);
		}
	},

	onKeyDown: function(/* Event */ e){
		// summary: Fired on keydown

		// we need this event at the moment to get the events from control keys
		// such as the backspace. It might be possible to add this to Dojo, so that
		// keyPress events can be emulated by the keyDown and keyUp detection.
		if(dojo.isIE){
			if(e.keyCode == dojo.keys.TAB && e.shiftKey && !e.ctrlKey && !e.altKey){
				// focus the BODY so the browser will tab away from it instead
				this.iframe.focus();
			}else if(e.keyCode == dojo.keys.TAB && !e.shiftKey && !e.ctrlKey && !e.altKey){
				// focus the BODY so the browser will tab away from it instead
				this.tabStop.focus();
			}else if(e.keyCode === dojo.keys.BACKSPACE && this.document.selection.type === "Control"){
				// IE has a bug where if a non-text object is selected in the editor,
		  // hitting backspace would act as if the browser's back button was
		  // clicked instead of deleting the object. see #1069
				dojo.stopEvent(e);
				this.execCommand("delete");
			}else if((65 <= e.keyCode&&e.keyCode <= 90) ||
				(e.keyCode>=37&&e.keyCode<=40) // FIXME: get this from connect() instead!
			){ //arrow keys
				e.charCode = e.keyCode;
				this.onKeyPress(e);
			}
		}else if(dojo.isMoz){
			if(e.keyCode == dojo.keys.TAB && !e.shiftKey && !e.ctrlKey && !e.altKey && this.iframe){
				// update iframe document title for screen reader
				this.iframe.contentDocument.title = this._localizedIframeTitles.iframeFocusTitle;
				
				// Place focus on the iframe. A subsequent tab or shift tab will put focus
				// on the correct control.
				this.iframe.focus();  // this.focus(); won't work
				dojo.stopEvent(e);
			}else if(e.keyCode == dojo.keys.TAB && e.shiftKey){
				// if there is a toolbar, set focus to it, otherwise ignore
				if(this.toolbar){
					this.toolbar.focus();
				}
				dojo.stopEvent(e);
			}
		}
	},

	onKeyUp: function(e){
		// summary: Fired on keyup
		return;
	},

	KEY_CTRL: 1,
	KEY_SHIFT: 2,

	onKeyPress: function(e){
		// summary: Fired on keypress

		// handle the various key events
		var modifiers = (e.ctrlKey && !e.altKey) ? this.KEY_CTRL : 0 | e.shiftKey ? this.KEY_SHIFT : 0;

		var key = e.keyChar || e.keyCode;
		if(this._keyHandlers[key]){
			// console.debug("char:", e.key);
			var handlers = this._keyHandlers[key], i = 0, h;
			while((h = handlers[i++])){
				if(modifiers == h.modifiers){
					if(!h.handler.apply(this,arguments)){
						e.preventDefault();
					}
					break;
				}
			}
		}

		// function call after the character has been inserted
		setTimeout(dojo.hitch(this, function(){
			this.onKeyPressed(e);
		}), 1);
	},

	addKeyHandler: function(/*String*/key, /*Int*/modifiers, /*Function*/handler){
		// summary: add a handler for a keyboard shortcut
		if(!dojo.isArray(this._keyHandlers[key])){ this._keyHandlers[key] = []; }
		this._keyHandlers[key].push({
			modifiers: modifiers || 0,
			handler: handler
		});
	},

	onKeyPressed: function(/*Event*/e){
		this.onDisplayChanged(/*e*/); // can't pass in e
	},

	onClick: function(/*Event*/e){
//		console.info('onClick',this._tryDesignModeOn);
		this.onDisplayChanged(e);
	},

	_onMouseDown: function(/*Event*/e){ // IE only to prevent 2 clicks to focus
		if(!this._focused && !this.disabled){
			this.focus();
		}
	},

	_onBlur: function(e){
		this.inherited(arguments);
		var _c=this.getValue(true);
		if(_c!=this.savedContent){
			this.onChange(_c);
			this.savedContent=_c;
		}
		if(dojo.isMoz && this.iframe){
			this.iframe.contentDocument.title = this._localizedIframeTitles.iframeEditTitle;
		} 
	},
	_initialFocus: true,
	_onFocus: function(/*Event*/e){
		// summary: Fired on focus
		this.inherited(arguments);
		if(dojo.isMoz && this._initialFocus){
			this._initialFocus = false;
			if(this.editNode.innerHTML.replace(/^\s+|\s+$/g, "") == "&nbsp;"){
				this.placeCursorAtStart();
//					this.execCommand("selectall");
//					this.window.getSelection().collapseToStart();
			}
		}
	},

	// TODO: why is this needed - should we deprecate this ?
	blur: function(){
		// summary: remove focus from this instance
		if(!dojo.isIE && this.window.document.documentElement && this.window.document.documentElement.focus){
			this.window.document.documentElement.focus();
		}else if(dojo.doc.body.focus){
			dojo.doc.body.focus();
		}
	},

	focus: function(){
		// summary: move focus to this instance
		if(!dojo.isIE){
			dijit.focus(this.iframe);
		}else if(this.editNode && this.editNode.focus){
			// editNode may be hidden in display:none div, lets just punt in this case
			//this.editNode.focus(); -> causes IE to scroll always (strict and quirks mode) to the top the Iframe 
			// if we fire the event manually and let the browser handle the focusing, the latest  
			// cursor position is focused like in FF                         
			this.iframe.fireEvent('onfocus', document.createEventObject()); // createEventObject only in IE 
//		}else{
// TODO: should we throw here?
//			console.debug("Have no idea how to focus into the editor!");
		}
	},

//		_lastUpdate: 0,
	updateInterval: 200,
	_updateTimer: null,
	onDisplayChanged: function(/*Event*/e){
		// summary:
		//		This event will be fired everytime the display context
		//		changes and the result needs to be reflected in the UI.
		// description:
		//		If you don't want to have update too often,
		//		onNormalizedDisplayChanged should be used instead

//			var _t=new Date();
		if(!this._updateTimer){
//				this._lastUpdate=_t;
			if(this._updateTimer){
				clearTimeout(this._updateTimer);
			}
			this._updateTimer=setTimeout(dojo.hitch(this,this.onNormalizedDisplayChanged),this.updateInterval);
		}
	},
	onNormalizedDisplayChanged: function(){
		// summary:
		//		This event is fired every updateInterval ms or more
		// description:
		//		If something needs to happen immidiately after a
		//		user change, please use onDisplayChanged instead
		this._updateTimer=null;
	},
	onChange: function(newContent){
		// summary:
		//		this is fired if and only if the editor loses focus and
		//		the content is changed

//			console.log('onChange',newContent);
	},
	_normalizeCommand: function(/*String*/cmd){
		// summary:
		//		Used as the advice function by dojo.connect to map our
		//		normalized set of commands to those supported by the target
		//		browser

		var command = cmd.toLowerCase();
		if(command == "hilitecolor" && !dojo.isMoz){
			command = "backcolor";
		}

		return command;
	},

	queryCommandAvailable: function(/*String*/command){
		// summary:
		//		Tests whether a command is supported by the host. Clients SHOULD check
		//		whether a command is supported before attempting to use it, behaviour
		//		for unsupported commands is undefined.
		// command: The command to test for
		var ie = 1;
		var mozilla = 1 << 1;
		var safari = 1 << 2;
		var opera = 1 << 3;
		var safari420 = 1 << 4;

		var gt420 = dojo.isSafari;

		function isSupportedBy(browsers){
			return {
				ie: Boolean(browsers & ie),
				mozilla: Boolean(browsers & mozilla),
				safari: Boolean(browsers & safari),
				safari420: Boolean(browsers & safari420),
				opera: Boolean(browsers & opera)
			}
		}

		var supportedBy = null;

		switch(command.toLowerCase()){
			case "bold": case "italic": case "underline":
			case "subscript": case "superscript":
			case "fontname": case "fontsize":
			case "forecolor": case "hilitecolor":
			case "justifycenter": case "justifyfull": case "justifyleft":
			case "justifyright": case "delete": case "selectall": case "toggledir":
				supportedBy = isSupportedBy(mozilla | ie | safari | opera);
				break;

			case "createlink": case "unlink": case "removeformat":
			case "inserthorizontalrule": case "insertimage":
			case "insertorderedlist": case "insertunorderedlist":
			case "indent": case "outdent": case "formatblock":
			case "inserthtml": case "undo": case "redo": case "strikethrough":
				supportedBy = isSupportedBy(mozilla | ie | opera | safari420);
				break;

			case "blockdirltr": case "blockdirrtl":
			case "dirltr": case "dirrtl":
			case "inlinedirltr": case "inlinedirrtl":
				supportedBy = isSupportedBy(ie);
				break;
			case "cut": case "copy": case "paste":
				supportedBy = isSupportedBy( ie | mozilla | safari420);
				break;

			case "inserttable":
				supportedBy = isSupportedBy(mozilla | ie);
				break;

			case "insertcell": case "insertcol": case "insertrow":
			case "deletecells": case "deletecols": case "deleterows":
			case "mergecells": case "splitcell":
				supportedBy = isSupportedBy(ie | mozilla);
				break;

			default: return false;
		}

		return (dojo.isIE && supportedBy.ie) ||
			(dojo.isMoz && supportedBy.mozilla) ||
			(dojo.isSafari && supportedBy.safari) ||
			(gt420 && supportedBy.safari420) ||
			(dojo.isOpera && supportedBy.opera);  // Boolean return true if the command is supported, false otherwise
	},

	execCommand: function(/*String*/command, argument){
		// summary: Executes a command in the Rich Text area
		// command: The command to execute
		// argument: An optional argument to the command
		var returnValue;

		//focus() is required for IE to work
		//In addition, focus() makes sure after the execution of
		//the command, the editor receives the focus as expected
		this.focus();

		command = this._normalizeCommand(command);
		if(argument != undefined){
			if(command == "heading"){
				throw new Error("unimplemented");
			}else if((command == "formatblock") && dojo.isIE){
				argument = '<'+argument+'>';
			}
		}
		if(command == "inserthtml"){
			argument=this._preFilterContent(argument);
			if(dojo.isIE){
				var insertRange = this.document.selection.createRange();
				if(this.document.selection.type.toUpperCase()=='CONTROL'){
					var n=insertRange.item(0);
					while(insertRange.length){
						insertRange.remove(insertRange.item(0));
					}
					n.outerHTML=argument;
				}else{
					insertRange.pasteHTML(argument);
				}
				insertRange.select();
				//insertRange.collapse(true);
				returnValue=true;
			}else if(dojo.isMoz && !argument.length){
				//mozilla can not inserthtml an empty html to delete current selection
				//so we delete the selection instead in this case
				dojo.withGlobal(this.window,'remove',dijit._editor.selection);
				returnValue=true;
			}else{
				returnValue=this.document.execCommand(command, false, argument);
			}
		}else if(
			(command == "unlink")&&
			(this.queryCommandEnabled("unlink"))&&
			(dojo.isMoz || dojo.isSafari)
		){
			// fix up unlink in Mozilla to unlink the link and not just the selection

			// grab selection
			// Mozilla gets upset if we just store the range so we have to
			// get the basic properties and recreate to save the selection
			var selection = this.window.getSelection();
			//	var selectionRange = selection.getRangeAt(0);
			//	var selectionStartContainer = selectionRange.startContainer;
			//	var selectionStartOffset = selectionRange.startOffset;
			//	var selectionEndContainer = selectionRange.endContainer;
			//	var selectionEndOffset = selectionRange.endOffset;

			// select our link and unlink
			var a = dojo.withGlobal(this.window, "getAncestorElement",dijit._editor.selection, ['a']);
			dojo.withGlobal(this.window, "selectElement", dijit._editor.selection, [a]);

			returnValue=this.document.execCommand("unlink", false, null);
		}else if((command == "hilitecolor")&&(dojo.isMoz)){
//				// mozilla doesn't support hilitecolor properly when useCSS is
//				// set to false (bugzilla #279330)

			this.document.execCommand("styleWithCSS", false, true);
			returnValue = this.document.execCommand(command, false, argument);
			this.document.execCommand("styleWithCSS", false, false);

		}else if((dojo.isIE)&&( (command == "backcolor")||(command == "forecolor") )){
			// Tested under IE 6 XP2, no problem here, comment out
			// IE weirdly collapses ranges when we exec these commands, so prevent it
//				var tr = this.document.selection.createRange();
			argument = arguments.length > 1 ? argument : null;
			returnValue = this.document.execCommand(command, false, argument);

			// timeout is workaround for weird IE behavior were the text
			// selection gets correctly re-created, but subsequent input
			// apparently isn't bound to it
//				setTimeout(function(){tr.select();}, 1);
		}else{
			argument = arguments.length > 1 ? argument : null;
//				if(dojo.isMoz){
//					this.document = this.iframe.contentWindow.document
//				}

			if(argument || command!="createlink"){
				returnValue = this.document.execCommand(command, false, argument);
			}
		}

		this.onDisplayChanged();
		return returnValue;
	},

	queryCommandEnabled: function(/*String*/command){
		// summary: check whether a command is enabled or not

		if(this.disabled){ return false; }
		command = this._normalizeCommand(command);
		if(dojo.isMoz || dojo.isSafari){
			if(command == "unlink"){ // mozilla returns true always
				// console.debug(dojo.withGlobal(this.window, "hasAncestorElement",dijit._editor.selection, ['a']));
				return dojo.withGlobal(this.window, "hasAncestorElement",dijit._editor.selection, ['a']);
			}else if(command == "inserttable"){
				return true;
			}
		}
		//see #4109
		if(dojo.isSafari){
			if(command == "copy"){
				command = "cut";
			}else if(command == "paste"){
				return true;
			}
		}

		// return this.document.queryCommandEnabled(command);
		var elem = dojo.isIE ? this.document.selection.createRange() : this.document;
		return elem.queryCommandEnabled(command);
	},

	queryCommandState: function(command){
		// summary: check the state of a given command

		if(this.disabled){ return false; }
		command = this._normalizeCommand(command);
		return this.document.queryCommandState(command);
	},

	queryCommandValue: function(command){
		// summary: check the value of a given command

		if(this.disabled){ return false; }
		command = this._normalizeCommand(command);
		if(dojo.isIE && command == "formatblock"){
			return this._local2NativeFormatNames[this.document.queryCommandValue(command)];
		}
		return this.document.queryCommandValue(command);
	},

	// Misc.

	placeCursorAtStart: function(){
		// summary:
		//		place the cursor at the start of the editing area
		this.focus();

		//see comments in placeCursorAtEnd
		var isvalid=false;
		if(dojo.isMoz){
			var first=this.editNode.firstChild;
			while(first){
				if(first.nodeType == 3){
					if(first.nodeValue.replace(/^\s+|\s+$/g, "").length>0){
						isvalid=true;
						dojo.withGlobal(this.window, "selectElement", dijit._editor.selection, [first]);
						break;
					}
				}else if(first.nodeType == 1){
					isvalid=true;
					dojo.withGlobal(this.window, "selectElementChildren",dijit._editor.selection, [first]);
					break;
				}
				first = first.nextSibling;
			}
		}else{
			isvalid=true;
			dojo.withGlobal(this.window, "selectElementChildren",dijit._editor.selection, [this.editNode]);
		}
		if(isvalid){
			dojo.withGlobal(this.window, "collapse", dijit._editor.selection, [true]);
		}
	},

	placeCursorAtEnd: function(){
		// summary:
		//		place the cursor at the end of the editing area
		this.focus();

		//In mozilla, if last child is not a text node, we have to use selectElementChildren on this.editNode.lastChild
		//otherwise the cursor would be placed at the end of the closing tag of this.editNode.lastChild
		var isvalid=false;
		if(dojo.isMoz){
			var last=this.editNode.lastChild;
			while(last){
				if(last.nodeType == 3){
					if(last.nodeValue.replace(/^\s+|\s+$/g, "").length>0){
						isvalid=true;
						dojo.withGlobal(this.window, "selectElement",dijit._editor.selection, [last]);
						break;
					}
				}else if(last.nodeType == 1){
					isvalid=true;
					if(last.lastChild){
						dojo.withGlobal(this.window, "selectElement",dijit._editor.selection, [last.lastChild]);
					}else{
						dojo.withGlobal(this.window, "selectElement",dijit._editor.selection, [last]);
					}
					break;
				}
				last = last.previousSibling;
			}
		}else{
			isvalid=true;
			dojo.withGlobal(this.window, "selectElementChildren",dijit._editor.selection, [this.editNode]);
		}
		if(isvalid){
			dojo.withGlobal(this.window, "collapse", dijit._editor.selection, [false]);
		}
	},

	getValue: function(/*Boolean?*/nonDestructive){
		// summary:
		//		return the current content of the editing area (post filters are applied)
		if(this.textarea){
			if(this.isClosed || !this.isLoaded){
				return this.textarea.value;
			}
		}

		return this._postFilterContent(null, nonDestructive);
	},

	setValue: function(/*String*/html){
		// summary:
		//		this function set the content. No undo history is preserved
		if(this.textarea && (this.isClosed || !this.isLoaded)){
			this.textarea.value=html;
		}else{
			html = this._preFilterContent(html);
			var node = this.isClosed ? this.domNode : this.editNode;
			node.innerHTML = html;
			this._preDomFilterContent(node);
		}
		this.onDisplayChanged();
	},

	replaceValue: function(/*String*/html){
		// summary:
		//		this function set the content while trying to maintain the undo stack
		//		(now only works fine with Moz, this is identical to setValue in all
		//		other browsers)
		if(this.isClosed){
			this.setValue(html);
		}else if(this.window && this.window.getSelection && !dojo.isMoz){ // Safari
			// look ma! it's a totally f'd browser!
			this.setValue(html);
		}else if(this.window && this.window.getSelection){ // Moz
			html = this._preFilterContent(html);
			this.execCommand("selectall");
			if(dojo.isMoz && !html){ html = "&nbsp;" }
			this.execCommand("inserthtml", html);
			this._preDomFilterContent(this.editNode);
		}else if(this.document && this.document.selection){//IE
			//In IE, when the first element is not a text node, say
			//an <a> tag, when replacing the content of the editing
			//area, the <a> tag will be around all the content
			//so for now, use setValue for IE too
			this.setValue(html);
		}
	},

	_preFilterContent: function(/*String*/html){
		// summary:
		//		filter the input before setting the content of the editing area
		var ec = html;
		dojo.forEach(this.contentPreFilters, function(ef){ if(ef){ ec = ef(ec); } });
		return ec;
	},
	_preDomFilterContent: function(/*DomNode*/dom){
		// summary:
		//		filter the input
		dom = dom || this.editNode;
		dojo.forEach(this.contentDomPreFilters, function(ef){
			if(ef && dojo.isFunction(ef)){
				ef(dom);
			}
		}, this);
	},

	_postFilterContent: function(/*DomNode|DomNode[]|String?*/dom,/*Boolean?*/nonDestructive){
		// summary:
		//		filter the output after getting the content of the editing area
		var ec;
		if(!dojo.isString(dom)){
			dom = dom || this.editNode;
			if(this.contentDomPostFilters.length){
				if(nonDestructive && dom['cloneNode']){
					dom = dom.cloneNode(true);
				}
				dojo.forEach(this.contentDomPostFilters, function(ef){
					dom = ef(dom);
				});
			}
			ec = dijit._editor.getChildrenHtml(dom);
		}else{
			ec = dom;
		}
		
		if(!ec.replace(/^(?:\s|\xA0)+/g, "").replace(/(?:\s|\xA0)+$/g,"").length){ ec = ""; }

		//	if(dojo.isIE){
		//		//removing appended <P>&nbsp;</P> for IE
		//		ec = ec.replace(/(?:<p>&nbsp;</p>[\n\r]*)+$/i,"");
		//	}
		dojo.forEach(this.contentPostFilters, function(ef){
			ec = ef(ec);
		});

		return ec;
	},

	_saveContent: function(/*Event*/e){
		// summary:
		//		Saves the content in an onunload event if the editor has not been closed
		var saveTextarea = dojo.byId(dijit._scopeName + "._editor.RichText.savedContent");
		saveTextarea.value += this._SEPARATOR + this.name + ":" + this.getValue();
	},

	escapeXml: function(/*String*/str, /*Boolean*/noSingleQuotes){
		dojo.deprecated('dijit.Editor::escapeXml is deprecated','use dijit._editor.escapeXml instead', 2);
		return dijit._editor.escapeXml(str,noSingleQuotes);
	},

	getNodeHtml: function(/* DomNode */node){
		dojo.deprecated('dijit.Editor::getNodeHtml is deprecated','use dijit._editor.getNodeHtml instead', 2);
		return dijit._editor.getNodeHtml(node);
	},

	getNodeChildrenHtml: function(/* DomNode */dom){
		dojo.deprecated('dijit.Editor::getNodeChildrenHtml is deprecated','use dijit._editor.getChildrenHtml instead', 2);
		return dijit._editor.getChildrenHtml(dom);
	},

	close: function(/*Boolean*/save, /*Boolean*/force){
		// summary:
		//		Kills the editor and optionally writes back the modified contents to the
		//		element from which it originated.
		// save:
		//		Whether or not to save the changes. If false, the changes are discarded.
		// force:
		if(this.isClosed){return false; }

		if(!arguments.length){ save = true; }
		this._content = this.getValue();
		var changed = (this.savedContent != this._content);

		// line height is squashed for iframes
		// FIXME: why was this here? if(this.iframe){ this.domNode.style.lineHeight = null; }

		if(this.interval){ clearInterval(this.interval); }

		if(this.textarea){
			with(this.textarea.style){
				position = "";
				left = top = "";
				if(dojo.isIE){
					overflow = this.__overflow;
					this.__overflow = null;
				}
			}
			this.textarea.value = save ? this._content : this.savedContent;
			dojo._destroyElement(this.domNode);
			this.domNode = this.textarea;
		}else{
//			if(save){
				//why we treat moz differently? comment out to fix #1061
//					if(dojo.isMoz){
//						var nc = dojo.doc.createElement("span");
//						this.domNode.appendChild(nc);
//						nc.innerHTML = this.editNode.innerHTML;
//					}else{
//						this.domNode.innerHTML = this._content;
//					}
//			}
			this.domNode.innerHTML = save ? this._content : this.savedContent;
		}

		dojo.removeClass(this.domNode, "RichTextEditable");
		this.isClosed = true;
		this.isLoaded = false;
		// FIXME: is this always the right thing to do?
		delete this.editNode;

		if(this.window && this.window._frameElement){
			this.window._frameElement = null;
		}

		this.window = null;
		this.document = null;
		this.editingArea = null;
		this.editorObject = null;

		return changed; // Boolean: whether the content has been modified
	},

	destroyRendering: function(){
		// summary: stub	
	}, 

	destroy: function(){
		this.destroyRendering();
		if(!this.isClosed){ this.close(false); }
		this.inherited("destroy",arguments);
		//dijit._editor.RichText.superclass.destroy.call(this);
	},

	_removeMozBogus: function(/* String */ html){
		return html.replace(/\stype="_moz"/gi, '').replace(/\s_moz_dirty=""/gi, ''); // String
	},
	_removeSafariBogus: function(/* String */ html){
		return html.replace(/\sclass="webkit-block-placeholder"/gi, ''); // String
	},
	_fixContentForMoz: function(/* String */ html){
		// summary:
		//		Moz can not handle strong/em tags correctly, convert them to b/i
		return html.replace(/<(\/)?strong([ \>])/gi, '<$1b$2')
			.replace(/<(\/)?em([ \>])/gi, '<$1i$2' ); // String
	},

	_srcInImgRegex	: /(?:(<img(?=\s).*?\ssrc=)("|')(.*?)\2)|(?:(<img\s.*?src=)([^"'][^ >]+))/gi ,
	_hrefInARegex	: /(?:(<a(?=\s).*?\shref=)("|')(.*?)\2)|(?:(<a\s.*?href=)([^"'][^ >]+))/gi ,

	_preFixUrlAttributes: function(/* String */ html){
		return html.replace(this._hrefInARegex, '$1$4$2$3$5$2 _djrealurl=$2$3$5$2')
			.replace(this._srcInImgRegex, '$1$4$2$3$5$2 _djrealurl=$2$3$5$2'); // String
	}
});

}
