<script language="javascript">
function IdentifyingPage(IdentifyingImage)
{
IdentifyingImage.src="../IdentifyingPage.aspx";
}
var bln= true;
function RunOnBeforeUnload() {
if (bln) {window.event.returnValue = '将丢失未保存的数据!';
}
}
</script>
<body onbeforeunload="RunOnBeforeUnload()">
