function iFrameHeight() {
          var h = 0;
          if(document.getElementById && !(document.all))
          {
            h = document.getElementById('blockrandom').contentDocument.height;
            document.getElementById('blockrandom').style.height = h + 60 + 'px';
          }
          else if(document.all)
               {
                  h = document.frames('blockrandom').document.body.scrollHeight;
                  document.all.blockrandom.style.height = h + 20 + 'px';
                }
        }

        function blockError(){return true;}
        window.onerror = blockError;
        
        jQuery.noConflict();
        jQuery(document).ready(function($){
            $(".title_navelemente").hover(function(){
               $(this).addClass("title_navelemente_hover");
            },function(){
               $(this).removeClass("title_navelemente_hover");
        });

    });