eg.:
<a href="addresse.html" onclick="NewWindow(this.href,'name','312','285','no');return false"><font color="#C6EFF7">Name</font></a>
<script language="javascript" type="text/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)
if(win.window.focus){win.window.focus();}
}
</script>
at function NewWindow
add an name an the popup link will open only in that window