ajax.inc

 *   an #ajax form element then this value can be NULL.
 * @param $argument
 *   An array of key/value pairs to set in the CSS for the selector.
 *
 * @return
 *   An array suitable for use with the ajax_render() function.
 *
 * @see http://docs.jquery.com/CSS/css#properties
 */
function ajax_command_css($selector, $argument) {
  return array(
    'command' => 'css',
    'selector' => $selector,
    'argument' => $argument,
  );
}

/**
 * Creates a Drupal AJAX 'settings' command.
 *
 * The 'settings' command instructs the client either to use the given array as
 * the settings for ajax-loaded content or to extend Drupal.settings with the
 * given array, depending on the value of the $merge parameter.
 *
 * This command is implemented by Drupal.ajax.prototype.commands.settings()
 * defined in misc/ajax.js.
 *
 * @param $argument
 *   An array of key/value pairs to add to the settings. This will be utilized
 *   for all commands after this if they do not include their own settings
 *   array.
 * @param $merge
 *   Whether or not the passed settings in $argument should be merged into the
 *   global Drupal.settings on the page. By default (FALSE), the settings that
 *   are passed to Drupal.attachBehaviors will not include the global
 *   Drupal.settings.
 *
 * @return
 *   An array suitable for use with the ajax_render() function.
 */
function ajax_command_settings($argument, $merge = FALSE) {
  return array(
    'command' => 'settings',
    'settings' => $argument,
    'merge' => $merge,
  );
}

/**
 * Creates a Drupal AJAX 'data' command.
 *
 * The 'data' command instructs the client to attach the name=value pair of
 * data to the selector via jQuery's data cache.
 *
 * This command is implemented by Drupal.ajax.prototype.commands.data()
 * defined in misc/ajax.js.
 *
 * @param $selector
 *   A jQuery selector string. If the command is a response to a request from
 *   an #ajax form element then this value can be NULL.
 * @param $name
 *   The name or key (in the key value pair) of the data attached to this
 *   selector.
 * @param $value
 *   The value of the data. Not just limited to strings can be any format.
 *
 * @return
 *   An array suitable for use with the ajax_render() function.
 *
 * @see http://docs.jquery.com/Core/data#namevalue
 */
function ajax_command_data($selector, $name, $value) {
  return array(
    'command' => 'data',
    'selector' => $selector,
    'name' => $name,
    'value' => $value,
  );
}

/**
 * Creates a Drupal AJAX 'invoke' command.
 *
 * The 'invoke' command will instruct the client to invoke the given jQuery
 * method with the supplied arguments on the elements matched by the given
 * selector. Intended for simple jQuery commands, such as attr(), addClass(),
 * removeClass(), toggleClass(), etc.
 *
 * This command is implemented by Drupal.ajax.prototype.commands.invoke()
 * defined in misc/ajax.js.
 *
 * @param $selector
 *   A jQuery selector string. If the command is a response to a request from
 *   an #ajax form element then this value can be NULL.
 * @param $method
 *   The jQuery method to invoke.
 * @param $arguments
 *   (optional) A list of arguments to the jQuery $method, if any.
 *
 * @return
 *   An array suitable for use with the ajax_render() function.
 */
function ajax_command_invoke($selector, $method, array $arguments = array()) {
  return array(
    'command' => 'invoke',
    'selector' => $selector,
    'method' => $method,
    'arguments' => $arguments,
  );
}

/**
 * Creates a Drupal AJAX 'restripe' command.
 *
 * The 'restripe' command instructs the client to restripe a table. This is
 * usually used after a table has been modified by a replace or append command.
 *
 * This command is implemented by Drupal.ajax.prototype.commands.restripe()
 * defined in misc/ajax.js.
 *
 * @param $selector
 *   A jQuery selector string.
 *
 * @return
 *   An array suitable for use with the ajax_render() function.
 */
function ajax_command_restripe($selector) {
  return array(
    'command' => 'restripe',
    'selector' => $selector,
  );
}