安全退出
function log_out()
{
ht = document.getElementsByTagName("html");
ht[0].style.filter = "progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)";
if (confirm('你确定要退出管理？'))
{
window.location.href="Logout.asp";
}
else
{
ht[0].style.filter = "";
return false;
}
}
-->