event.srcElement在火狐下的兼容问题——ie用event.srcElement,火狐用event.target

<span style="font-family:Microsoft YaHei;font-size:12px;">event.srcElement : 可以捕获当前事件作用的对象<a href="#" onclick="test(event)"><img src="images/index_33-1.jpg" border="0"/></a><script language="javascript" type="text/javascript">     function test(event) {         event = event? event: window.event        var obj = event.srcElement ? event.srcElement:event.target;         if ( document.all) {             obj.click();        } else {             var evt = document.createEvent("MouseEvents");             evt.initEvent("click", true, true);             obj.dispatchEvent(evt);        }     } </script></span>