jQuery(document).ready(function() {
 /* HEADER BACKGROUND IMAGE ROTATOR */
  var randomImages = ['1','2','3','4','5'];
  var rndNum = Math.floor(Math.random() * randomImages.length);
  jQuery("html").css({ background: "url(http://www.kindhumansports.com/images/backgrounds/bg-repeat" + randomImages[rndNum] + ".jpg) repeat 0 0" });
});