var xmlDoc;
if (window.ActiveXObject)
  {// code for IE
  xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
  }
else if (document.implementation.createDocument)
  {// code for Firefox, Mozilla, Opera, etc.
  xmlDoc=document.implementation.createDocument("","",null);
  }
else
  {
  alert('Your browser cannot handle this script');
  }
xmlDoc.async=false;
xmlDoc.load("http://southerncompany.mediaroom.com/index.php?s=103&page=43&category=874050");

var x=xmlDoc.getElementsByTagName("item");