IE8 Crashes Strangely on JavaScript Popup

I am facing a strange issue after the popup is created onclick. The popup opens up but hangs immediately on IE8 (works fine on all the other browsers including IE6). But on adding the alertbox as show in the JavaScript code, the popup works fine.

I am using **https** and not **http** and i feel popup is not able to load the JS file because of SSL.

Here is the how i am generating the onclick event:

<a id="forgotPasswordLink" href="#" onclick="openSupportPage();"> Some Text </a>

The onclick function is defined this way:

        function openSupportPage() {
            var features = "width=700,height=400,status=yes,toolbar=no,menubar=no,location=no,scrollbars=yes";
            var winId = window.open('', '', features);
            winId.focus();
            winId.document.open();
            winId.document.write('<html><head><title>' + document.title + '</title><link rel="stylesheet" href="./css/default.css" type="text/css">\n');
            var is_ie6 = (
            window.external && typeof window.XMLHttpRequest == "undefined");
            alert(is_ie6);/*The JS include below*/
                          /*works in popup only with this alert box.*/
                          /*else IE8 Hangs*/
                winId.document.write('<script src="../js/tiny_mce/tiny_mce.js" type="text/javascript">Script_IE8</script>\n');


            winId.document.write('<script type="text/javascript">\n');
            winId.document.write('function inittextarea() {\n');
            winId.document.write('tinyMCE.init({  \n');
            winId.document.write('elements : "content",\n');
            winId.document.write('theme : "advanced",\n');
            winId.document.write('readonly : true,\n');
            winId.document.write('mode : "exact",\n');
            winId.document.write('theme : "advanced",\n');
            winId.document.write('readonly : true,\n');
            winId.document.write('setup : function(ed) {\n');
            winId.document.write('ed.onInit.add(function() {\n');
     winId.document.write('tinyMCE.activeEditor.execCommand("mceToggleVisualAid");\n');
            winId.document.write('});\n');
            winId.document.write('}\n');
            winId.document.write('});}</script>\n');
            winId.document.write('</head><body onload="inittextarea()">\n');
            winId.document.write('  \n');
            var hiddenFrameHTML = document.getElementById("HiddenFrame").innerHTML;
            hiddenFrameHTML = hiddenFrameHTML.replace(/&amp;/gi, "&");
            hiddenFrameHTML = hiddenFrameHTML.replace(/&lt;/gi, "<");
            hiddenFrameHTML = hiddenFrameHTML.replace(/&gt;/gi, ">");
            winId.document.write(hiddenFrameHTML);
            winId.document.write('<textarea id="content" rows="10" style="width:100%">\n');
            winId.document.write(document.getElementById(top.document.forms[0].id + ":supportStuff").innerHTML);
            winId.document.write('</textArea>\n');
            var hiddenFrameHTML2 = document.getElementById("HiddenFrame2").innerHTML;
            hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&amp;/gi, "&");
            hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&lt;/gi, "<");
            hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&gt;/gi, ">");
            winId.document.write(hiddenFrameHTML2);
            winId.document.write('</body></html>\n');
            winId.document.close();
    }

Please help me on this one. I could provide more information on this if needed.

I have referred to these posts already:

Importing js file in https page using http URL in IE8

Force Browser Mode=IE8 and document mode=IE8 Standards

Additional Information:

Screen shot of the page

Rendered HTML

Original JSPF

Here is the final working function which solved my issue and works in IE6, IE7, IE8, Chrome, Firefox, Safari and Opera.

function openSupportPage() {
    var features="width=700,height=400,status=yes,toolbar=no,menubar=no,location=no,scrollbars=yes";            
    var winId=window.open('','',features);
    winId.document.open();
    winId.document.write('<html><head><title>' + document.title + '</title><link rel="stylesheet" href="../css/default.css" type="text/css">\n');

    window.setTimeout(function () {
        winId.document.write(
          '<script src="../js/tiny_mce/tiny_mce.js" type="text/javascript"></scr' + 'ipt>\n'
        );
    }, 10);

    winId.document.write('<script type="text/javascript">\n');
    winId.document.write('function inittextarea() {\n');
    winId.document.write('tinyMCE.init({  \n');  
    winId.document.write('elements : "content",\n');
    winId.document.write('theme : "advanced",\n');
    winId.document.write('readonly : true,\n');
    winId.document.write('mode : "exact",\n');
    winId.document.write('theme : "advanced",\n');
    winId.document.write('readonly : true,\n');
    winId.document.write('setup : function(ed) {\n');
    winId.document.write('ed.onInit.add(function() {\n');
    winId.document.write('tinyMCE.activeEditor.execCommand("mceToggleVisualAid");\n');
    winId.document.write('});\n');
    winId.document.write('}\n');
    winId.document.write('});}</script>\n');

    window.setTimeout(function () {
        winId.document.write('</head><body onload="inittextarea()">\n');
        winId.document.write('  \n');
        var hiddenFrameHTML = document.getElementById("HiddenFrame").innerHTML;
        hiddenFrameHTML = hiddenFrameHTML.replace(/&amp;/gi, "&");
        hiddenFrameHTML = hiddenFrameHTML.replace(/&lt;/gi, "<");
        hiddenFrameHTML = hiddenFrameHTML.replace(/&gt;/gi, ">");
        winId.document.write(hiddenFrameHTML); 
        winId.document.write('<textarea id="content" rows="10" style="width:100%">\n');
        winId.document.write(document.getElementById(top.document.forms[0].id + ":supportStuff").innerHTML);
        winId.document.write('</textArea>\n');
        var hiddenFrameHTML2 = document.getElementById("HiddenFrame2").innerHTML;
        hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&amp;/gi, "&");
        hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&lt;/gi, "<");
        hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&gt;/gi, ">");
        //hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&amp;/gi, "&").replace(/&lt;/gi, "<").replace(/&gt;/gi, ">");
        winId.document.write(hiddenFrameHTML2); 
        winId.document.write('</body></html>\n');
        winId.document.close();
    }, 300);
}

I got a lot of help from these questions: