document.observe("dom:loaded", function () {
  urls.randomize = function () {
    $R(1, 10).each(function (n) {
      var i1 = Math.floor(Math.random() * this.size());
      var i2 = Math.floor(Math.random() * this.size());

      var item1 = this[i1];
      var item2 = this[i2];

      this[i1] = item2;
      this[i2] = item1;
    }.bind(this));
  }
  
  urls.randomize();
  
  var adContainer = $('ad_container');

  urls.each( function(urlInfo, index) {    
    var str = "";

    str +=  '<p>';
    str +=    '<span class="full-image-block ssNonEditable">';
    str +=      '<span>';
    str +=        '<a href="' + urlInfo.url + '" target="_blank">';
    str +=          '<img src="' + urlInfo.imageUrl + '" alt="" />';
    str +=        '</a>';
    str +=      '</span>';
    str +=    '</span>';
    str +=  '</p>';

    adContainer.insert(str);
  });
});