function determinePopUp(link_url)
{
  
  var compare_str="http://www.dcpmidstream.com";
  var compare_str_length= compare_str.length;
  var current_location=window.location;
 
  if (parent.location.href.substring(0,compare_str_length)== link_url.substring(0,compare_str_length))
  {
	parent.location = link_url;
  }
  else
  {
    alert("test");
   	window.open(link_url);
  };
  return false;

}