diff --git a/windowsize.module b/windowsize.module
index 69bf147..45392c4 100644
--- a/windowsize.module
+++ b/windowsize.module
@@ -1,17 +1,30 @@
 <?php
+/*
+ * Implements hook_form_alter().
+ */
+function windowsize_form_alter(&$form, &$form_state, $form_id) {
+  if ($form_id == 'system_theme_settings') {
+    $form['theme_settings']['toggle_windowsize'] = array(
+    '#type' => 'checkbox',
+    '#title' => t('Toggle Window Size'),
+    '#description' => t('Check the box to turn the widget on and make it visible. Uncheck it to hide it.'),
+    '#default_value' => theme_get_setting('toggle_windowsize'),
+    );
+  }
+}
 
 /**
  * Implements hook_init().
  */
 function windowsize_init() {
-  if (user_access('view WindowSize')) {
+  if ((user_access('view WindowSize')) && (theme_get_setting('toggle_windowsize'))) {
     drupal_add_js(drupal_get_path('module', 'windowsize') . '/windowsize.js');
     drupal_add_css(drupal_get_path('module', 'windowsize') . '/windowsize.css');
   }
 }
 
 /**
- * Implements hook_perm().
+ * Implements hook_permission().
  */
 function windowsize_permission() {
   return array(