function validateSearch(){
	d= document.RefineForm;
	var SubLength;
	var SubCheck;
	var SubTxt = d.Sub.value;
	if (d.PT.selectedIndex==0) {						// All PT selected
		for (i=1; i<d.PT.length; i++) {
			d.PT.options[i].selected = true
		}
		d.PT.options[0].selected = true
		d.PT.options[0].selected = false
	}
	
	SubLength = SubTxt.length;
	SubCheck = SubTxt.substring(SubLength-2,SubLength);
	if(SubCheck == ', '){
		d.Sub.value = SubTxt.substring(0,SubLength-2);
	}

	return true;
}