determining plugin version

[wsuh]

I understand how to use javascript and vbscript to determine if the authorware web player plugin is detected on the end user's browser (IE). How do I determine the version of the authorware plugin on internet explorer? Here's the code I have thus far:

<script language=&quot;Javascript&quot;>

<!--
var plugin = (navigator.mimeTypes &&

navigator.mimeTypes[&quot;application/x-authorware-map&quot;]);

if (navigator.userAgent && navigator.userAgent.indexOf(&quot;MSIE&quot>=0
&& navigator.userAgent.indexOf(&quot;Windows NT&quot>=0) {
document.write('<SCRIPT LANGUAGE=VBScript\> \n');
document.write('on error resume next \n');
document.write('plugin = (

IsObject(CreateObject(&quot;Macromedia.AuthorwareShockwaveControl.1&quot))\n');
document.write('</SCRIPT\> \n');
}

if (plugin) {
window.open(&quot;edi/edi_final.aam&quot;, &quot;edi&quot;, &quot;width=640, height=480&quot
}

else {
document.write('<h1>Authorware WebPlayer 5 Plugin Not Detected</h1>');
}
//-->
</script>