Hey Friends,
I have created custom registration form in drupal 6. i have used changed the behavior of the drupal registration page by adding this code in themes. template file
function earthen_theme($existing, $type, $theme, $path) {
  return array(
    // tell Drupal what template to use for the user register form
    'user_register' => array(
      'arguments' => array('form' => NULL),
      'template' => 'user_register', // this is the name of the template
    ),
  );
}
 
and
my user_register.tpl.php file is looking like this...
//php tag starts from here
$forms['access'] = array(
  '#type' = 'fieldset',
  '#title' = t('Access log settings'),
);
 $form['my_text_field']=array( '#type' = 'textfield',
  '#default_value' = $node-title,
  '#size' = 30,
  '#maxlength' = 50,
  '#required' = TRUE
);
<div id="registration_form"><br>
  <div class="field">
   <?php
        print drupal_render($form['my_text_field']); // prints the username field
   ?>
   </div>
  <div class="field">
    <?php
      print drupal_render($form['account']['name']); // prints the username field
    ?>
  </div>
  <div class="field">
    <?php
      print drupal_render($form['account']['pass']); // print the password field
    ?>
  </div>
  <div class="field">
    <?php
      print drupal_render($form['account']['email']); // print the password field
    ?>
  </div>
  <div class="field">
    <?php
        print drupal_render($form['submit']); // print the submit button
     ?>
    </div>
</div>
How to make validation on "my_text_field" which is custmized.  
and exactly i want that as soon as user click on my_text_field then datetime picker should be open and whichever date user select, that date should be value in my_text_field.
so guys help.
Thanks in advance,
nitish 
Panchjanya Corporation