Why doesn't this pop up work in firefox

[KITT]

1) Script Title: Drop-in content Box

2) Script URL (on DD): http://www.dynamicdrive.com/dynamici.../dropinbox.htm

3) Describe problem: It just doesn't work in firefox, can anyone tell me why? It works in opera anf iexplorer. The pop up is located on this page

The code from the header of the document:

<!--Dropin Box Header Start-->
<script language="JavaScript1.2">

// Drop-in content box- By Dynamic Drive
// For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
// This credit MUST stay intact for use

var ie=document.all
var dom=document.getElementById
var ns4=document.layers
var calunits=document.layers? "" : "px"

var bouncelimit=32 //(must be divisible by 8)
var direction="up"

function initbox(){
if (!dom&&!ie&&!ns4)
return
crossobj=(dom)?document.getElementById("dropin").style : ie? document.all.dropin : document.dropin
scroll_top=(ie)? truebody().scrollTop : window.pageYOffset
crossobj.top=scroll_top-250+calunits
crossobj.visibility=(dom||ie)? "visible" : "show"
dropstart=setInterval("dropin()",50)
}

function dropin(){
scroll_top=(ie)? truebody().scrollTop : window.pageYOffset
if (parseInt(crossobj.top)<100+scroll_top)
crossobj.top=parseInt(crossobj.top)+40+calunits
else{
clearInterval(dropstart)
bouncestart=setInterval("bouncein()",50)
}
}

function bouncein(){
crossobj.top=parseInt(crossobj.top)-bouncelimit+calunits
if (bouncelimit<0)
bouncelimit+=8
bouncelimit=bouncelimit*-1
if (bouncelimit==0){
clearInterval(bouncestart)
}
}

function dismissbox(){
if (window.bouncestart) clearInterval(bouncestart)
crossobj.visibility="hidden"
}

function truebody(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}


function get_cookie(Name) {
var search = Name + "="
var returnvalue = ""
if (document.cookie.length > 0) {
offset = document.cookie.indexOf(search)
if (offset != -1) {
offset += search.length
end = document.cookie.indexOf(";", offset)
if (end == -1)
end = document.cookie.length;
returnvalue=unescape(document.cookie.substring(offset, end))
}
}
return returnvalue;
}

function dro****ot(){
if (get_cookie("droppedin")==""){
window.onload=initbox
document.cookie="droppedin=yes"
}
}
dro****ot()
</script>
<!--Dropin Box Header End-->

The actual drop in Box


<!--Dropin Box Start-->
<div id="dropin" style="border:4px solid #f26522;visibility:hidden;position:absolute;left:310px;top:100px;width:375px;height:390px;background-color:#FFFFFF; z-index:0">
<div align="right">
<a href="#" onClick="dismissbox();return false" target="_blank">[Luk] </a>
</div>
<table width="100%">
<tr>
<td width="0"></td>
<td colspan="2">
<p align="center"><strong>F&aring; Pokermagasinet PocketACES <br />
gratis! Leveret direkte<br />
i din egen inbox.</strong></p></td>
<td width="1"></td>
</tr>
<tr>
<td width="0"></td>
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<td width="1"></td>
</tr>

<tr>
<td width="0"></td>
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<td width="150" valign="top"><div align="center">
<p><a href="http://www.pocketaces.dk/lists/?p=subscribe" target="_blank"><img border="0" src="/images/diverse/emag/pacove150.jpg" width="150" height="209"></a></p>
</div></td>
<td width="1"></td>
</tr>
<tr>
<td width="0"></td>
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<td width="1"></td>
</tr>
</table>
</div>
<!--Dropin Box End-->

Hope you guys can help

[mburt]

Umm.. I just tested it in FireFox.. It works fine here. If come across any more problems just let me know.

[KITT]

Thank you , I had a feeling about that it was just my firefox browser that didn't do what i wanted it to do. But thanks anyway