/**
  * LIst skills for adding
  *
  * @param
  * @return
  */
 function listSkillsForAdd()
 {
     global $ilUser, $tpl, $ilCtrl, $lng, $ilTabs;
     $ilTabs->setBackTarget($lng->txt("back"), $ilCtrl->getLinkTarget($this, ""));
     include_once "./Services/Skill/classes/class.ilPersonalSkillExplorerGUI.php";
     $exp = new ilPersonalSkillExplorerGUI($this, "listSkillsForAdd", $this, "addSkill");
     if ($exp->getHasSelectableNodes()) {
         if (!$exp->handleCommand()) {
             $tpl->setContent($exp->getHTML());
         }
         ilUtil::sendInfo($lng->txt("skmg_select_skill"));
     } else {
         ilUtil::sendInfo($lng->txt("skmg_no_nodes_selectable"));
     }
 }