function sortResults() {
	var sortOrderDropDown = document.getElementById('sortDropDown');
	var sortOrder = sortOrderDropDown.value;
	var currentPage = location.href;
	
	
	if(/sort=\d/.test(currentPage)){
		currentPage = currentPage.replace(/sort=\d/g, 'sort=' + sortOrder);
	}
	else{
		currentPage = currentPage + "&sort=" + sortOrder;
	}
	
	window.location = currentPage;
}