function sort(field, type)
{
	var f = document.getElementById('sort_field');
	var t = document.getElementById('sort_type');
	var s = document.getElementById('sort_dir');
	var frm = document.getElementById('sort_frm');
	
	if(s.value == "asc")
	{
		s.value = "desc";
	}
	else
	{
		s.value = "asc";
	}
	
	f.value = field;
	t.value = type;
	
	frm.submit();
}