I am trying to grab the value of my href in jquery how is it done'?

This is what I have done:

$('#playbackbutton').click(
      function() {
         $("#playbackdiv").load("$('a:href').val();", [], function(){
               $("#playbackdiv").dialog("open");
            }
         );
         return false;
      }

I need to get the value of the href in my a tag.

here is the html:

<a href="/record/123.wav">play</a>