Code
<script type="text/javascript" >
window.onbeforeunload=function()
{
jiazai("b");
}
window.onload=function()
{
jiazai("a");
}
function jiazai(a)
{
if(a=="a")
{
parent.document.all("divYofus").style.display = "inline";
}
else
{
parent.document.all("divYofus").style.display = "none";
}
}
</script>
<script type="text/javascript" >
window.onbeforeunload=function()
{
jiazai("b");
}
window.onload=function()
{
jiazai("a");
}
function jiazai(a)
{
if(a=="a")
{
parent.document.all("divYofus").style.display = "inline";
}
else
{
parent.document.all("divYofus").style.display = "none";
}
}
</script>