This is a very simple test of the AUDIO tag in HTML5, the PagePlayer project is a much more advanced example. This will only work in an HTML5 compliant browser, which at the time if this writing means Firefox 3.5.
- press the ">" button to start playing
- clicking in the progress bar area will seek to the point of the click
- I'll let you figure out the rest
You might be interested in my blog post about HTML5.