Snipped for Drupal page allowing users to post to site global Twitter

gistfile1.txt

<?php
  if (!user_access('post to twitter')) {
    drupal_set_message("You don't have permission to post to our Twitter account, sorry!");
  }
  else {
    module_load_include('inc', 'twitter');

    function twitter_standalone_form() {
      $form = twitter_post_form();
      $form['submit'] = array(
        '#type' => 'submit',
        '#value' => t('Post'),
      );
      return $form;
    }

    function twitter_standalone_form_submit($form, &$form_state) {
      $twitter_account = twitter_account_load($form_state['values']['account']);
      $status = $form_state['values']['status'];

      try {
        twitter_set_status($twitter_account, $status);
        drupal_set_message(t('Posted "' . $status . '" to @' . $twitter_account->screen_name));  
      }  
      catch (TwitterException $e) {
        drupal_set_message(t('An error occurred when posting to Twitter: @message',
                             array('@message' => $e->getMessage())), 'warning');
      }
    }

    return drupal_render(drupal_get_form('twitter_standalone_form'));
  }
?>