兼容FF IE的Event

function getEvent() { if(document.all) return window.event;//如果是ie 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; } //e.g. var e=getEvent(); $("#fr1").css("left",e.clientX-2); $("#fr1").css("top",e.clientY-2);