<?php

function drupalorg_block($op = 'list', $delta = 0, $edit = array()) { 
  if ($op == 'list') { 
    $blocks['project_search'] = array(
     'info' => t('Project search'),
    );
    return $blocks; 
  }
  else if ($op == 'view') { 
    switch($delta) { 
      case 'project_search':
        if (user_access('search content')) {
          return array(
            'subject' => t('Search projects'), 
            'content' => drupal_get_form('drupalorg_project_search_box', 'project_project'),
          );
        }
        break;
    }
  }
}

function drupalorg_project_search_box($node_type) {
  $form = search_box('drupalorg_project_search_box_'. $node_type);
  $form['node_type'] = array(
    '#type' => 'value',
    '#value' => $node_type,
  );
  $form['#base'] = 'drupalorg_project_search_box_form';
  return $form;
}

function drupalorg_project_search_box_form_submit($form_id, $form_values) {
  return 'search/node/type:'. $form_values['node_type'] .' '. trim($form_values[$form_id .'_'. $form_values['node_type'] .'_keys']);
}