public function ajaxdelanswer()
 {
     $aid = $_GET['aid'];
     $ainfo = mod_crmmanage::getanswerbyid($aid);
     if ($ainfo['creater_id'] != ADMINUSERID && !in_array(ADMINUSERID, $this->adminlist)) {
         echo "norights";
         exit;
     }
     $data['exists'] = 0;
     $result = pm_db::update('crm_answer', $data, "answer_id=" . $aid);
     if ($result) {
         echo "ok";
     } else {
         echo "error";
     }
 }