Exclude certain category from exposed view

Thank you Mooffie for your quick response. Mooffie, I've moved the whole site to the new http://www.ufilm.tv and will only be working on there. Filmmaker.co.za will be pointing to the new site at some stage.

Yes, you were right, changed the planet.js file and now it updates with .. one moment please .. but it does not load the information of that particular country.

planet.js

// $Id$

$(function() {

  /**
   * Ajaxify exposed filter forms on our page. It triggers form refresh
   * for some dropdown boxes.
   */
  function planet_setup_form() {

    /**
     * Refreshes the form. Fetches a new exposed filters form.
     */
    var refresh_form = function(form, view_name, wait_selector, wait_message) {
      var button = $('.form-submit', form)[0];
      Drupal.redirectFormButton(Drupal.settings.planet.filters_url+'/'+view_name, button, {
        onsubmit: function() {
          // display a 'wait' message...
          $(wait_selector, form)
            .css('visibility', 'hidden')
            .before("<span style='position: absolute'>"+wait_message+"</span>");
        },
        onerror: function (data) {
          if (data.length > 5) {
            $(form).before('<h2 class="error">Some error occured: '+data+'</h2>').remove();
          }
        },
        oncomplete: function (data) {
          // Prevent flicker: wrap the form, go up this wrapper, overwrite its content.
          $(form).wrap('<div></div>').parent().html(data);
          planet_setup_form();
        }
      });
      button.onfocus();
      button.click();
    }; // refresh_form()

    if (!jQuery.prototype.onechange) {
      alert('Wrong version of jQuery');
      return;
    }
    $('.view-directory select[@name=filter0]').onechange(function() {
      refresh_form(this.form, 'directory', 'select[@name=filter1]', 'one moment please .. loading data');
    });
  } // planet_setup_form()

  planet_setup_form();

});

and planet.module

<?php
// $Id$

/**
 * @file
 * Customizations for the Filmmaker website.
 */

function planet_menu($may_cache) {
  $items = array();
  if (!$may_cache) {
    $items[] = array(
      'path'     => 'ajax/filters',
      'callback' => 'planet_ajax_filters',
      'type'     => MENU_CALLBACK,
      'access'   => TRUE,
    );
  }
  return $items;
}

/**
 * Returns an exposed filters form, for a view. Used by javascript.
 */
function planet_ajax_filters($view_name = 'directory') {
  $view = views_get_view($view_name);
  if (!$view) {
    print drupal_to_js(array('status' => FALSE, 'data' => "View '$view_name' not found"));
  } else {
    $form = views_theme('views_display_filters', $view);
    print drupal_to_js(array('status' => TRUE, 'data' => $form));
  }
  exit();
}

/**
 * Get items for use in a taxonomy dropdown. Tree structure is shown,
 * as well as count of nodes in brackets. Terms not associated with 
 * nodes are skipped.
 *
 * @param $vid
 *   The vocabulary ID
 * @param $domain
 *   Optional. If non-zero, restrict display to nodes tagged by this tid.
 * @param $includes
 *   Optional. An array of tid's to always include in display.
 */
function get_fancy_vocabulary_dropdown($vid, $domain = 0, $includes = array()) {

  // count nodes per term:
  static $count = array();
  if (!isset($count[$domain])) {
    $count[$domain] = array();
    if (!$domain) {
      $sql = "SELECT COUNT(nid) AS count, tid FROM {term_node} GROUP BY tid";
    }
    else {
      // restrict counting to nodes tagged with the $domain tid.
      $sql = "
        SELECT
          COUNT(n.nid) AS count, tn.tid
        FROM
          {term_node} n
        INNER JOIN
          {term_node} tn ON n.nid = tn.nid
        WHERE
          n.tid = $domain
        GROUP BY
          tn.tid";
    }
    $res = db_query($sql);
    while ($o = db_fetch_object($res)) {
      $count[$domain][$o->tid] = $o->count;
    }
  }

  // get the terms:
  $terms = taxonomy_get_tree($vid);

  // populate $options:
  $options = array();
  foreach ($terms as $term) {
    if (!empty($count[$domain][$term->tid]) || in_array($term->tid, $includes)) {
      $options[$term->tid] = str_repeat('--', $term->depth) . $term->name .
		' ('. intval($count[$domain][$term->tid]) .')';
    }
  }
  
  return $options;
}

/**
 * Spice up our 'directory' view with fancier taxonomy dropdowns.
 */
function theme_views_display_filters_directory($view) {

  drupal_add_js(array('planet' => array('filters_url' => url('ajax/filters', NULL, NULL, TRUE))), 'setting');
  drupal_add_js(drupal_get_path('module', 'planet') .'/planet.js', 'module', 'header', FALSE, FALSE);

  $country   = isset($_GET['filter0']) ? intval($_GET['filter0']) : 0;
  $directory = isset($_GET['filter1']) ? intval($_GET['filter1']) : 0;

  $form = drupal_retrieve_form('views_filters', $view);

  $countries_vid   = 2; // CHANGE THIS NUMBER to match the vocabulary ID of your countries.
  $directory_vid = 1; // CHANGE THIS NUMBER to match the vocabulary ID of your directories.

  $form['filter0']['#options'] = array('**ALL**' => t('<All>')) +
                                  get_fancy_vocabulary_dropdown($countries_vid);
  $form['filter1']['#options'] = array('**ALL**' => t('<All>')) +    
                                  get_fancy_vocabulary_dropdown($directory_vid, $countries, array($directory));

  $result = drupal_process_form('views_filters', $form);
  $output = drupal_render_form('views_filters', $form);
  return $output;
}

So much appreciate your kind help Mooffie, it's wonderful.

Just one quick question. When I want to also load an extra ajax for taxonomy/term ... is it easy to do?

Wishing you a fabulous day.
Lilian