function SortByField(sSortField, sCurrentSortField)
{
	var sOrder = document.getElementById("SortOrder").value;
	
	document.getElementById("SortOrder").value = (sOrder!=1?1:0);

	if(sSortField!=sCurrentSortField)
	{
		document.getElementById("SortField").value = sSortField;
		//when click on other column come with asc order
		document.getElementById("SortOrder").value = 0;
	}	
	document.searchForm.submit();
}