Javascript, QT_WriteOBJECT and setting sound volume

Question

I am having trouble setting the sound volume for a sound file using QT_WriteOBJECT.
Here is the script:
<script language="javascript">
QT_WriteOBJECT('foo.mp3' , '320', '16' , 'autoplay' , 'true' , 'volume','50' );
</script>
But somehow this ends in an error (requires an even number of arguments.) Can someone please help me?

Answer 1

http://developer.apple.com/internet/ieembedprep.html
I use the "external" javascript method and have no
issues. In the "old days" we would use object/embed code and
the special qtsrc tag for file formats that may be
opened with other plug-ins to force the QT browser
plug-in be used.
Yes, I do find the old way much easier (in some respects) but I am always on the lookout for new things to learn and for browser independent coding. I finally managed to get it to work. This is what I have:
<script language="text/javascript" type="text/javascript">
QT_WriteOBJECT('intro.mp3' , '130', '20', '', 'Volume', '50', 'AUTOPLAY', 'True') ;
</script>
I have tested it with Safari, Firefox, iCab (so far) and it works. My guess is that javascript is very fuzzy about the tag names? I am clueless about it and am glad that that part is over for now.
The next challenge is learning how to update the embed/object tags for the more modern versions of IE (ugh.)
Any help would be greatly appreciated.