function attach(uiElement &$element)
 {
     // only uiMgmtBigMenuItems can be attached to uiMgmtBigMenus
     if ($element->getClassName() == "uiMgmtBigMenuItem") {
         parent::attach(&$element);
     }
 }
 function attach(uiElement $element)
 {
     // can only attach, if we are a dropdown-box
     if ($this->elementType == "dropdown") {
         parent::attach(&$element);
     } else {
         return 0;
     }
 }
 function attach(uiElement $element)
 {
     // we can attach everything as child element
     parent::attach(&$element);
 }