JavaScript error when trying to play media player file
 

I got this out of JavaScript console in my firefox browser. Has anybody seen it before, I was trying to play a music sample,w hich requires windows media player, but it won't play anything. I have gxine, which usually works fine to play these files. Any ideas, is this something I can fix on my end? thanks

Error: document.getElementById("Player") has no properties
Source File: http://www.buy.com/retail/searchResu...18250&dclksa=1
Line: 645