context: 	iframeLoaded: function(evt, ifrLoc){		if(!dojo.render.html.opera){			var query = this._getUrlQuery(ifrLoc.href);			if(query == null){ 				// alert("iframeLoaded");				// we hit the end of the history, so we should go back				if(this.historyStack.length == 1){					this.handleBackButton();				}				return;			}			if(this.moveForward){				// we were expecting it, so it's not either a forward or backward movement				this.moveForward = false;				return;			}				//Check the back stack first, since it is more likely.			//Note that only one step back or forward is supported.			if(this.historyStack.length >= 2 && query == this._getUrlQuery(this.historyStack[this.historyStack.length-2].url)){				this.handleBackButton();			}			else if(this.forwardStack.length > 0 && query == this._getUrlQuery(this.forwardStack[this.forwardStack.length-1].url)){				this.handleForwardButton();			}		}	},
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/browser.js/clean/www/resources/dojo-ajax/src/undo/browser.js