复制代码 代码如下:

function getEvent()

{

var i = 0;

if(document.all){

return window.event;

}

func = getEvent.caller;

while(func != null)

{

var arg0 = func.arguments[0];

if(arg0)

{

if(arg0.constructor == MouseEvent)

{

return arg0;

}

}

func = func.caller;

}

return null;

}

函数中要引用须传参e才能等到:

复制代码 代码如下:

function buttonOver(e)

{

e = getEvent();

var obj = e.srcElement || e.target;

if (obj.runtimeStyle){

obj.runtimeStyle.cssText = "background-color:#FFFFFF";

}

else

obj.style.background = "#FFFFFF";

}