/**
* Used in the UI to get vaidation text for given Form inputs
*
* @param string $input_key The form input name
* @return string The validation text.
*/
public static function validation($input_key)
{
if (isset(self::$validation_results[$input_key]) && !empty(self::$validation_results[$input_key])) {
echo "<span class=\"error\">" . u::h(self::$validation_results[$input_key], false) . "</span>";
}
}