<script language="javascript">
function IsClose()
{
if(confirm("是否退出系统?"))
{
return true;
}
return false;
}
</script>
<body onbeforeunload="javascript:if(IsClose()){return false;}else{return true}">
function IsClose()
{
if(confirm("是否退出系统?"))
{
return true;
}
return false;
}
</script>
<body onbeforeunload="javascript:if(IsClose()){return false;}else{return true}">
function winclose(){return '是否退出系统?';
}
</script>
<body onbeforeunload="return winclose()" ></body>