rem: return false; 
add: catch(ex) { return false; } return true;  
context: function gotoHistoryIndex(aEvent){  var index = aEvent.target.getAttribute("index");  if (index) {    getWebNavigation().gotoIndex(index);    return true;  }  return false;}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/a7fd382c2900a5551cc1a790107cedd909bd951a/navigator.js/buggy/suite/browser/navigator.js