[jQuery] The index of an element with Event

Hello,

I can't figure out how to accès the index of the élément that is clicked.

Let's say I have 4 mp3 links in the page and that I click the second one 
, I can acces the url of the link that is clicked like this

 $("a[@rel='enclosure'][@href$=mp3]").bind("click",function(e){
    alert(this.href);
    e.stopPropagation();
    return false;
  });

But how can I know that it is the second link that is cliked, i.e the 
index of this link beyond all links ?

Sorry for my poor english ;)

PS : I'm working on a jQuery + Aflax mp3 player :)
 
BoOz