Add function $form->add_error_to_field

[Scorpshn]

Link error message to a spesific field same as clientside validation
$form = new Zebra_Form('my_form');
$obj = $form->add('text', 'my_text');
if ($form->validate()) {
if ((int)$_POST['my_text']) < 1 || (int)$_POST['my_text']) > 10) {
$form->add_error_to_field('my_text', 'Value must be an integer between 1 and 10!');
}
}
$form->render();

 *  @param  string  $field_id       The Unique name to identify the control where to attach the error block
 *  
 *  @param  string  $error_message  The error message to append to the error block.
 *
 */