In this jquery code:

$(document).ready(function(){
 $list = $(".channeList li");
  $list.click(function(){
    var $this = $(this);
    var $mainDesc   = $(".ply");
    var iframe      = $("a", $this).attr("rel");
    $("iframe", $mainDesc).attr("src", iframe);
       } 

    );
  }
);

There is a list o channels in left that iframe loads from a rel's. I want to load first iframe in <div class="ply"></div> Can we do this without load first item in html and do this only with jquery? Thanks in advance