quick and dirty javascript sounds

I've written about HTML5 audio before, but the quickest/dirtiest way is:

var fx = document.createElement('audio');
fx.setAttribute('src', 'soundfile.mp3');
fx.setAttribute('loop', 'loop'); //optional

//...
fx.play();

//... 

fx.pause();

non-looping and resetting variants are left as an exercise for the reader.