Play sound file on mouseover

There's a page on my site which has some javascript to play a sound file when the mouse is over one of three places.

It used to work correctly but no longer does so.

Now, instead of just playing the file, it open up a new page on which is presented a compact player and then plays the file. The viewer then has to go back to the previous page to continue.

I have made no changes to the script so I presume that it's something in my browser, IE6, which has changed. But what?

The page is http://www.davidbridgen.com/shaky.htm

The code isn't mine, it's from one of the websites, perhaps dynamic drive? I don't remember.

Will someone try to figure out why it isn't working as before, please?