Code example

gistfile1.php

<?php
/**
 * @file
 * Web analytics.
 */

/**
 * Implements hook_help().
 */
function web_analyt_help($section) {
  switch ($section) {
    case 'admin/help#web_analyt':
      return t('The inserts web analytics tracking code.');
  }
}

/**
 * Implements hook_menu().
 */
function web_analyt_menu() {
  $items['admin/config/web_analyt'] = array(
    'description' => 'Support for web analytics.',
    'title' => 'Web analytics',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('web_analyt_admin_settings'),
    'access arguments' => array('administer clicktale'),
  );
  return $items;
}

/**
 * Implements hook_permission(). Registers the permission "administer
 * clicktale".
 */
function web_analyt_permission() {
  return array(
    'administer clicktale' => array(
      'title' => t('administer clicktale'),
    ),
  );
}

/**
 * Implements hook_init(). Inserts the value of the variable
 * "web_analyt_header" into the page header.
 */
function web_analyt_init() {
  global $user;
  if ($user->uid == 0 && $value = variable_get('web_analyt_header', 0)) {
    $element = array(
      '#tag' => 'script',
      '#prefix' => '<!-- ClickTale Top part -->',
      '#suffix' => '<!-- ClickTale end of Top part -->',
      '#value'=> $value,
      '#attributes' => array('type' => 'text/javascript'),
    );
    drupal_add_html_head($element, 'web_analyt_header');
  }
}

/**
 * Implements hook_page_build(). Inserts the value of the variable
 "web_analyt_footer" into the page footer.
 *
 * @param $main (optional)
 *   Whether the current page is the front page of the site.
 * @return A script element
 */
function web_analyt_page_build(&$page) {
  global $user;
  if ($user->uid == 0 && $value = variable_get('web_analyt_footer', 0)) {
    $page['footer']['web_analyt']= array(
      '#type' => 'markup',
      '#markup' => $value,
    );
  }
}

/**
 * Clictale configuration form.
 */
function web_analyt_admin_settings($form, &$form_state) {
  $form['web_analyt'] = array(
    '#type' => 'item',
    '#value' => '<p>' . t("Enter your ClickTale tracking code in the fields below.") . '</p>',
  );
  $form['web_analyt_header'] = array(
    '#type' => 'textarea',
    '#title' => t('Header'),
    '#default_value' => variable_get('web_analyt_header', ''),
    '#description' => t('Tracking code to insert after the &lt;body&gt; tag'),
    '#required' => TRUE,
  );
  $form['web_analyt_footer'] = array(
    '#type' => 'textarea',
    '#title' => t('Footer'),
    '#rows' => '12',
    '#default_value' => variable_get('web_analyt_footer', ''),
    '#description' => t('Tracking code to insert before the &lt;/body&gt; tag'),
    '#required' => TRUE,
  );
  return system_settings_form($form);
}