function sorting(spID, tpID, colName){
    var orderColName = colName + "_order";
    var ascOrDesc = document.form[orderColName].value;

    if(ascOrDesc == "" || ascOrDesc == "ASC"){
        document.form[orderColName].value = "DESC"; 
        ascOrDesc = "DESC";
    }else if(ascOrDesc == "DESC"){
        document.form[orderColName].value = "ASC";  
        ascOrDesc = "ASC";
    }

    var url = "/includes/classes/rateTableManager/ajax.getPublicTable.php?page=" + spID + "&terid=" + tpID + "&orderBy=" + colName + "&orderByDir=" + ascOrDesc;

    getAJAXContent(url, "rateTableDiv");
}