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.isLoaded){			// try again after the editor is finished loading			this.onLoadDeferred.addCallback(dojo.hitch(this, function(){				this.setValue(html);			}));			return;		}		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	}});}