(function($) {
  // select a random image out of 10 for the menu background.
  var randomnumber = Math.floor(Math.random() * 10) + 1;
  $('#qawardsmenu').css('background-image','url(http://images.q4music.com/content/q/qawards2009/menu/header' + randomnumber + '_back.jpg)');
})(jQuery);