static function buildSearchForm(&$form) {
// pledge related dates
CRM_Core_Form_Date::buildDateRange($form, 'pledge_start_date', 1, '_low', '_high', ts('From'), FALSE);
static function buildSearchForm(&$form) {
// pledge related dates
CRM_Core_Form_Date::buildDateRange($form, 'pledge_start_date', 1, '_low', '_high', ts('From'), FALSE);