Problem opening pop up in IE 8

[tam nina]

I am trying to open a new pop up for my application . And each popup has a window name . Suppose if the user closes the popup he can open the popup with same name .else the existing pop up should be displayed .

I wrote the below code to do that . But this is not opening a popup if the user closes it else its opening a new popup . Please suggest how can go with this .

d='javascript:if(document.getElementsByTagName("*").length>0&&document.getElementsByTagName("body")[0].innerHTML!=""&&!confirm("You are about to navigate to home page Do you want to do that ? ")){opener.display2WindowHelp();}else{window.location.replace("${pageContext.request.scheme}://${pageContext.request.serverName}:${pageContext.request.serverPort}${pageContext.request.contextPath}'+d+'");}';
b= window.open(d,"_spor_window_"+a+window.location.hostname.replace(/\./g,""),"menubar=no,scrollbars=yes,height="+screen.availHeight+",width="+screen.availWidth+",left=0,top=0,resizable=yes,toolbar=no,location=no,status=no");

please drop your suggestions

[Bear Bibeault]

First thing I'd do is to reformat the code to be readable.

[Eric Pascarello]

Basic idea in this thread: http://www.coderanch.com/t/538106/HTML-JavaScript/Check-if-popup-window-already

Eric