同时兼容IE和Firefox的事件(Event)
function getEvent(){ //同时兼容ie和ff的写法 if(document.all) return window.event; func=getEvent.caller; while(func!=null){ var arg0=func.arguments[0]; if(arg0){ if((arg0.constructor==Event || arg0.constructor ==MouseEvent) || (typeof(arg0)=="object" && arg0.preventDefault && arg0.stopPropagation)){ return arg0; } } func=func.caller; } return null; }
例子:
function TxtKeywordKeyDown() { var evt = getEvent(); if(evt.keyCode == 13) { SearchRedirect(); } if(evt.keyCode == 38) { alert("向上"); } if(evt.keyCode == 40) { alert("向下"); } }