windows media player and netscape 6.1

[oliver]

i embedded wmp in a html document. now i want to control the player via javascript.
my code works with IE (and NS 4.7), but not with netscape 6.1. even though
i used the new DOM rules, like accesing the media player object by:

<script lang=js... >
function ...
var elem = document.getElementsById("mediaplayer");
elem.play();
</script>

why does this not work, anyone knows?

thanx oliver