View difference between Paste ID: Z4T7vzWX and a6FTdKt7

 // Answer for question on Drupal Stack Exchange:
 // http://drupal.stackexchange.com/questions/27907/enable-a-nodes-menu-item-when-on-that-node
 
 // this is the template.php file!!
- * @see http://api.drupal.org/api/drupal/includes%21menu.inc/function/theme_menu_link/7
+// ....
 
-function YOURTHEMENAME_menu_link(array $variables) {
+
  * @see http://api.drupal.org/api/drupal/includes!theme.inc/function/theme_link/7
-  $element_can_be_visible_on_node_id = 9; // SUBSTITUTE IT with your node's id!!
+
-  $your_path_to_hide = 'node/'.$element_can_be_visible_on_node_id; // SUBSTITUTE IT with yours (when using nodes, use it like this: 'node/9', etc.!)
+function YOURTHEMENAME_link($variables) {
-  $is_element_to_hide = ($variables['element']['#href'] == $your_path_to_hide);
+    // in this example, I let "contact" and "node/9" links only be visible if the user is on these pages
-  if($is_element_to_hide){
+    // and I let some other paths to be displayed at, see below...
-    $element_can_be_visible = (arg(0)=='node' && arg(1) == $element_can_be_visible_on_node_id);
+    $your_paths_to_hide_array = array('contact', 'node/9'); // SUBSTITUTE IT with yours - empty cache every time you change that
-
+    // these links will be visible only on their own pages -
-    if(!$element_can_be_visible){
+    // but here you can define other paths where they can be visible at
-      return '';
+    // if you don't want any other pages for these to be visible at, then
     // leave it empty (like this: array()),
-  }
+    $link_also_visible_on_paths = array('node/3', 'any_other_path'); // SUBSTITUTE IT with your paths! - empty cache every time you change that
-
+    $is_link_to_hide = in_array($variables['path'], $your_paths_to_hide_array);
-  $element = $variables['element'];
+    if ($is_link_to_hide) {
-  $sub_menu = '';
+        $is_current_page_self = ($variables['path'] == $_GET['q']);
         $element_can_be_visible = $is_current_page_self || (!empty($link_also_visible_on_paths) && in_array($_GET['q'], $link_also_visible_on_paths));
-  if ($element['#below']) {
+
-    $sub_menu = drupal_render($element['#below']);
+        if (!$element_can_be_visible) {
-  }
+            return '';
-  $output = l($element['#title'], $element['#href'], $element['#localized_options']);
+        }
-  return '<li' . drupal_attributes($element['#attributes']) . '>' . $output . $sub_menu . "</li>\n";
+
-}
+    return '<a href="' . check_plain(url($variables['path'], $variables['options'])) . '"' . drupal_attributes($variables['options']['attributes']) . '>' . ($variables['options']['html'] ? $variables['text'] : check_plain($variables['text'])) . '</a>';
 }
 
 // ....