rem: var id = event.target.getAttribute("id"); 
add: var id = aEvent.target.getAttribute("id"); 
context: function gotoHistoryIndex( aEvent )  {	  var index = aEvent.target.getAttribute("index");	  if (index)       {        appCore.gotoHistoryIndex(index);	      return true;	    }	  else       {	      var id = event.target.getAttribute("id");	      if (id == "menuitem-back")	        BrowserBack();	      else if (id == "menuitem-forward")	        BrowserForward();      }  }
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/e70a33f1a3d59c0d451b5f2e81e7717bd5fd4662/navigator.js/clean/suite/browser/navigator.js