// JavaScript Document
//new script
$('document').ready(function(){
      var imageArr = $('#sourceImages img'),
      imageArrLength = imageArr.length,
      randNum = Math.floor ( Math.random ( ) * imageArrLength + 0 );
      // show image that is nth child of image array
	  var whichIMG = $(imageArr[randNum]).attr('src');
	  $("#random").css({'background-image':'url('+whichIMG+')'});
})