I am working on a custom module to create a form. Functionality of the module is as follows: The first form has an url, on clicking the url it should show another form as a pop-up. How can i call these forms in the hook menu. Does tools_js has any significance?

<?php  function patient_menu() {   $items['patient_add/mainpage'] = array(     'title' => 'New Patient',     'page callback' => 'patient_form',     'page arguments' => array(),     'access callback' => 'user_is_logged_in',     'type' => MENU_CALLBACK, ); //a link to add patient diseases  $items['patient_add/%ctools_js'] = array( 'page callback' => 'patient_callback', 'page arguments' => array(1), 'access callback' => 'user_is_logged_in', 'type' => MENU_CALLBACK, );  return $items; }   // a function to make a  link function _patient_make_link($link_text = '') {   return '<div id="patient">' . l($link_text, 'patient_add/nojs', array('attributes' => array('class' => 'ctools-use-modal'))) . '</div>'; } //first form  function patient_form($form, &$form_state)  { ctools_include('modal'); ctools_modal_add_js();      $form['p_name'] = array(     '#type' => 'textfield',     '#title' => t('Name'),      '#size' => 30,      '#maxlength' => 128,      '#required' => TRUE, );  $form['age'] = array(     '#type' => 'textfield',     '#title' => t('Age'),      '#size' => 30,      '#maxlength' => 30,      '#required' => TRUE,     '#attributes' => array('placeholder' => t( 'in Years' )), );   $form['submit'] = array(     '#value' => t('Add Patient'),     '#type' => 'submit', );  _patient_make_link('add disease details');  return $form;  }  //Ajax menu callback  function patient_callback($ajax) { if ($ajax) { ctools_include('ajax'); ctools_include('modal');  $form_state = array(   'ajax' => TRUE,   'title' => t('disease details'), ); $output = ctools_modal_form_wrapper('disease_form', $form_state); if (!empty($form_state['ajax_commands'])) {   $output = $form_state['ajax_commands']; } print ajax_render($output); drupal_exit(); }  else {   return drupal_get_form('disease_form');   } } //second form function disease_form($form, $form_state){   $form['disease_ids'] = array(     '#type' => 'select',     '#title' => t('Disease IDs'),     '#multiple' => TRUE,     '#options' => array(         'Cancer' => 'Cancer',         'Dengu' => 'Dengu',         'Viral Fever' => 'Viral Fever',         'Malaria' => 'Malaria',     ),  ); $form['submit'] = array( '#type' => 'submit', '#value' => t('Submit'), ); return $form;  }   function patient_form_submit($form, &$form_state) {}