批改 window.setTimeout，使之可以传递参数和对象参数

<script language="javascript">
/**//*
??? 功能：修改 window.setTimeout，使之可以传递参数和对象参数
??? 使用方法： setTimeout(回调函数,时间,参数1,,参数n)
*/
var mySetTimeOut = setTimeout;
window.setTimeout = function(callback, timeout)
{
var args = Array.prototype.slice.call(arguments, 2);
function callFn(){callback.apply(null, args);}
return mySetTimeOut(callFn, timeout);
}

///测试代码

function aaaa(a)
{
??? alert(a);
??? window.setTimeout(aaaa,1000,a);
}

function aaaaa(a,b,c)
{
??? alert(a + b + c);
}

var a = new Object();
window.setTimeout(aaaa,1000,a);
window.setTimeout(aaaaa,2000,a,6,7);
</script>