Drupal 7 - Add a cancel button to drupal form

cancel button.php

<?php
// Code copied from http://drupal.org/node/116939#comment-4906786

function MODULENAME_form_alter(&$form, $form_state, $form_id){
    
    
    switch ($form_id) {
      // This is our form ID.
      
      case 'NODETYPE_node_form': 
      
      $form['buttons']['cancel'] = array (
      '#type' => 'submit',
      '#access' => TRUE,
      '#value' => 'Cancel',
      '#weight' => 60,
      '#submit' => array('node_form_cancel') //This is the name of a function reproduced below
      );
      break;
      //Continue on with other node forms, replicate for NODETYPE_ONE_node_form, for example 
    }
    
}

function node_form_cancel(){
if ($_GET['destination']){
$backurl = $_GET['destination'];
}else{
$backurl ="front"; //replace with a URL if there is not a destination parameter.     
}
drupal_goto($backurl);
}
?>