/**
  * Copy items to clipboard
  */
 function copyItems()
 {
     global $ilCtrl, $lng;
     if (!is_array($_POST["id"]) || count($_POST["id"]) == 0) {
         $this->redirectToParent();
     }
     include_once "./Services/Skill/classes/class.ilSkillTreeNode.php";
     $items = ilUtil::stripSlashesArray($_POST["id"]);
     $todel = array();
     // delete IDs < 0 (needed for non-js editing)
     foreach ($items as $k => $item) {
         if ($item < 0) {
             $todel[] = $k;
         }
     }
     foreach ($todel as $k) {
         unset($items[$k]);
     }
     if (!ilSkillTreeNode::uniqueTypesCheck($items)) {
         ilUtil::sendInfo($lng->txt("skmg_insert_please_choose_one_type_only"), true);
         $this->redirectToParent();
     }
     ilSkillTreeNode::clipboardCopy(1, $items);
     // @todo: move this to a service since it can be used here, too
     include_once "./Modules/LearningModule/classes/class.ilEditClipboard.php";
     ilEditClipboard::setAction("copy");
     ilUtil::sendInfo($lng->txt("skmg_selected_items_have_been_copied"), true);
     $this->redirectToParent();
 }