sound plays locally, downloads on site

[mgason]

Hi,
yes I have 2 questions up related to audio!
Not sure Javascript is the problem.
I am trying 2 completely different methods. Either would be OK if they worked.
With this method the audio works fine testing locally in the browser, popping up a window with a helper player BUT when on the site it opens the window which then downloads the mp3 instead of playing it.

http://museum.spps.org/pop_up_audio.html

This is the script

<script>
<!--
function wopen(url, name, w, h)
{
// Fudge factors for window decoration space.
 // In my tests these work well on all platforms & browsers.
w += 32;
h += 96;
 var win = window.open(url,
  name, 
  'width=' + w + ', height=' + h + ', ' +
  'location=no, menubar=no, ' +
  'status=no, toolbar=no, scrollbars=no, resizable=no');
 win.resizeTo(w, h);
 win.focus();
}
// -->
</script>

This is the code for the link text

<a href= "uploads/2ndGraders.mp3" target="popup"
 onClick="wopen('uploads/2ndGraders.mp3', 'popup', 350, 150); return false;">
2nd Graders talk about Museum Magnet</a>

hope someone can help. I am not a javascripter, I just hunted down a couple of things that looked like they might work.
thanks
Mark