$validUser = CRM_Contact_BAO_Contact_Utils::validChecksum($tempID, $userChecksum);
if ($validUser) {
CRM_Core_Resources::singleton()->addVars('coreForm', array('contact_id' => (int) $tempID));
$validUser = CRM_Contact_BAO_Contact_Utils::validChecksum($tempID, $userChecksum);
if ($validUser) {
CRM_Core_Resources::singleton()->addVars('coreForm', array('contact_id' => (int) $tempID));