function createAjaxRequest()
{
  if (typeof XMLHttpRequest != "undefined")
  {
    return new XMLHttpRequest();
  }
  else if (window.ActiveXObject)
  {
    var aVersions = [ "MSXML2.XMLHttp.5.0", "MSXML2.XMLHttp.4.0","MSXML2.XMLHttp.3.0", "MSXML2.XMLHttp","Microsoft.XMLHttp" ];
    for (var i = 0; i < aVersions.length; i++)
    {
      try
      {
          var oXmlHttp = new ActiveXObject(aVersions[i]);
          return oXmlHttp;
      }
      catch (oError)
      {
          //Do nothing
      }
    }
  }
  throw new Error("Your browser does not support AJAX");
}

function checkFavorites(url)
{
  if ((document.cookie.length > 0) && (document.cookie.indexOf('eo_favorites=') >= 0))
  {
    window.location=url;
  }
  else
  {
    alert("You have no favorites stored on your computer");
  }
}