protected function _parsePickerMap($pickerMap)
    {
        $returnList = array();
        $pickerList = explode(",", $pickerMap);
        foreach ($pickerList as $pair)
        {
            $controlMap = explode(":", $pair);
            $controlMap[0] = trim($controlMap[0]);
            $controlMap[1] = trim($controlMap[1]);
            $returnList[] = $controlMap;
        }
        return $returnList;
    }