A newbie question relating to popups

[black_substanze]

Hi guys/gals

I have a quick question pertaining to web design, however using a particular java script to generate pop ups. Now my issue is as follows: I have created a website that resides in a big pop up but I need to open additional pop ups while in the "main popup".

The problem is that when I try to do so it overrides the "main popup" when I want it to open in a seperate popup untop of that pop up. Any help would be appreciated and/or if theres a better script out there, please direct me to it.

Javascript that goes in the head of the page:

<script language="javascript">
var win = null;
function NewWindow(mypage,myname,w,h,scroll){
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
win = window.open(mypage,myname,settings)
}
</script>

Body of page:

<a href="images/forsale/foxrun/bigpictures/picture2.html" onClick="NewWindow(this.href,'name','720','530','n');return false">
<img border="0" src="images/forsale/foxrun/pic2.gif" width="120" height="120">

[jscheuer1]

Please don't double post.

[black_substanze]

Thank you jscheuer for your reply, this can be closed.