Form builder; Output a search form for the search block's search box.
function search_box($form, &$form_state, $form_id) {
$form[$form_id] = array(
'#type' => 'textfield',
'#title' => t('Search'),
'#title_display' => 'invisible',
'#size' => 15,
'#default_value' => '',
'#attributes' => array(
'title' => t('Enter the terms you wish to search for.'),
),
);
$form['actions'] = array(
'#type' => 'actions',
);
$form['actions']['submit'] = array(
'#type' => 'submit',
'#value' => t('Search'),
);
$form['#submit'][] = 'search_box_form_submit';
return $form;
}