Add a div at end of the form so that i can display data over there This is my code..

function mymodule_menu()
{
$items = array();

  $items['mymodules/page'] = array(
    'title' =&gt; t('my module settings'),
    'description' =&gt; t('change values here'),
    'page callback' =&gt; 'drupal_get_form',
    'page arguments' =&gt; array('mymodule_page'),
    'access arguments' =&gt; array('access administration pages'),
    'type' =&gt; MENU_NORMAL_ITEM,
   );
  return $items;
}

function mymodule_page()
{
$form = array();

$brandarray = array('nokia','siemes');
 $form['mymodule_brand'] = array(
    '#type' =&gt; 'select',
    '#title' =&gt; t('Brand'),
    '#default_value' =&gt; variable_get('mymodule_brand', 'nokia'),
    '#options' =&gt; $brandarray,
    '#description' =&gt; t('Change this.'),
  );
 $form['div_tag'] = array('#type' =&gt; 'markup', '#value' =&gt; '&lt;div id="div-id-1"&gt;content comes here&lt;/div&gt;'); 
 return system_settings_form($form);

}


I just want to do like this. After the form is displayed i just want to add a div so that i can use it for my dynamic data which comes after select is changed. How do i do it?
Try this:

$form['my_markup'] = array(
  '#markup' =&gt; '&lt;p&gt;Lorem ipsum&lt;/p&gt;'
);


Check the documentation at
http://api.drupal.org/api/drupal/developer--topics--forms_api_reference.html#markup