...code a custom search - Taxonomy search!

Hi!

I need to search terms by keywords, but only in one vocab - so i wrote the taxonomy_search() - function.

/**
* Implementation of hook_search().
*/
function taxonomy_search($op = 'search', $keys = NULL, $vid=NULL) {
        switch ($op) {
                case 'name':
                {
                return t('Taxonomy');
                }
                case 'search':
                {
                $find = array();
                if (!$vid){
                $db_result = db_query(db_rewrite_sql("SELECT t.tid, t.* FROM {term_data} t WHERE LOWER(t.name) LIKE LOWER('%%%s%%')", 't', 'tid'), trim($keys));
                }
                else {
                $db_result = db_query(db_rewrite_sql("SELECT t.tid, t.* FROM {term_data} t WHERE LOWER(t.name) LIKE LOWER('%%%s%%') AND t.vid=%d", 't', 'tid'), trim($keys), $vid);
                }
                        while ($term = db_fetch_object($db_result))
                        { $find[] = array('tid'=>$term->tid, 'title'=>$term->name, 'link'=>'/taxonomy/term/'.$term->tid);}
                return $find;
                }
        }
} 

Although i added some code to taxonomy_form_alter() to support the search-module

if ($form_id == 'search_form' && $form['module']['#value'] == 'taxonomy') {
   $vocabs=taxonomy_get_vocabularies();
   $vop=array();
   foreach($vocabs as $voc)
   {
    $vop[$voc->vid]= $voc->name;
   }
   $form['vocabulary'] = array(
         '#type' => 'checkboxes',
         '#title' => t('In the vocabulary'),
         '#prefix' => '<div class="criterion">',
         '#size' => 10,
         '#suffix' => '</div>',
         '#options' => $vop,
         '#multiple' => TRUE,
         '#name' => 'vid',
      );
  }

----------------------------------------

So, now i have my own page-node with embedded PHP-Code. It is a form, that displays a autocomplete-Field for one Vocabulary; goal is to show the results!

function verein_form($form_state) {
$form['verein'] = array(
          '#type' => 'textfield',
          '#title' => t('Verein'),
          '#autocomplete_path' => 'taxonomy/auto23complete/4',
          '#maxlength' => 255,
          '#attributes' => array('title' => t('Enter the terms you wish to search for.')),
          '#default_value' => '',
          '#attributes' => array('title' => t('Enter the terms you wish to search for.')),
);
$form['taxonomy']= array(
         '#value' => 'taxonomy',
         '#type' => 'hidden',
         '#name' => 'type[taxonomy]',
);
  $form['submit'] = array('#type' => 'submit', '#value' => t('Search'));
//  $form['#submit'][] = 'search_box_form_submit';
  $form['#submit'][] = 'verein_form_submit';
  $form['#validate'][] = 'search_box_form_validate';
  return $form;
}

if i coose $form['#submit'][] = 'search_box_form_submit'; it will redirect to the /search/taxonomy/.$keys - page and search for my keywords.

But the issues:
- There is no "Taxonomy"-Button next to "Content" and "Users" - the search seems not to be registered.
- How do i add the criterion $vid?

--------------------

Another aproach is to integrate the results into my Page - I would prefer that. So i wrote a own form_submit-function, to redirect the User to the Term-Page, if there is only one result

function verein_form_submit($form, &$form_state) {
$vereine=taxonomy_search('search', $form_state['values']['verein'], 4);
if (count($vereine)==1) {
   drupal_goto("verein/".$vereine[0]['title']);
   }
else 
  {
 //  drupal_goto("search/taxonomy/".$form_state['values']['verein']); //This does not submit the criterion "vid"
 //  drupal_goto("vereine/".$form_state['values']['verein']); // This ends up in an 404-Error
//print_r(vereine); // does not work!
}
} 

I cannot echo or print from within verein_form_submit - how do i theme or anything else the output?
So pleaaase - how do i add the results to my page?
do i have to create a view? Can i use Wildcards with the Arguments?
Thank You for Your help!