function sortResults(selector, formName){

	var addr= document.location.href;
	addr=addr.replace("sortOrder=orderByEffectivePrice","");
	addr=addr.replace("sortOrder=orderByMakeModelName","");	
	addr=addr.replace("sortOrder=orderByMakeModel","");
	addr=addr.replace("sortOrder=orderBySaving","");
	addr=addr.replace("sortOrder=orderByPAYGHandsetPrice","");
	addr=addr.replace("sortOrder=orderByHandsetPrice","");
	
	if (document.location.href.search(/\?/)>0){
		connector='&';
	}
		else{
			connector='?';
		}
	
	addr+=connector+'sortOrder='+selector;
	addr=addr.replace("?&","?");
	
	document.location.href = addr;	
}