function skjulLink(obj) {
   function getElementsById(ids) {
       var idList = ids.split(" ");
       var results = [], item;
       for (var i = 0; i < idList.length; i++) {
       item = document.getElementById(idList[i]);
       if (item) {
       results.push(item);
       }
       }
       return(results);
       }
   getElementsById(obj).style.visibility = "hidden";
}