function openSortedFile()
{
  for (var i=0; i< document.sortByForm.sortBy.length; i++)
	{
	if (document.sortByForm.sortBy[i].checked)
	   {
	   var srtBy=document.sortByForm.sortBy[i].value;

	   var formObj=document.getElementById("sortByFormID");
	   //alert ("sort by:"+ srtBy);
	   /// formObj.target="_blank";
	   formObj.action = "ListingBy" + srtBy + ".asp";
	   formObj.submit();
	   }
	}

}