add: if(dojo.render.html.moz && !html){ html = "&nbsp;" } 
context: 		replaceEditorContent: function(/*String*/html){			// summary:			//		this function set the content while trying to maintain the undo stack			html = this._preFilterContent(html);			if(this.isClosed){				this.domNode.innerHTML = html;			}else if(this.window && this.window.getSelection && !dojo.render.html.moz){ // Safari				// look ma! it's a totally f'd browser!				this.editNode.innerHTML = html;			}else if((this.window && this.window.getSelection) || (this.document && this.document.selection)){ // Moz/IE				this.execCommand("selectall");				this.execCommand("inserthtml", html);			}		},
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/RichText.js/buggy/www/resources/dojo-ajax/src/widget/RichText.js