jQuery(document).ready(function(){
      bgImageTotal=15;
      randomNumber = Math.round(Math.random()*(bgImageTotal-1))+1;
      imgPath=('http://www.hiphounds.com/wp-content/themes/hiphounds/images/headers/header'+randomNumber+'.jpg');
      jQuery('.randomImage').css('background', ('#fff url("'+imgPath+'")'));
      });