document.onclick = function (event)
{
var e = event ||
window.event;
var elem =
e.srcElement||e.target;
while(elem)
{
if(elem.id ==
"Divid")
{
return;
}
elem =
elem.parentNode;
}
//隐藏div的方法
HiddenDiv();
}
原文：http://www.cnblogs.com/xlh91118/p/3613611.html