function showDiv(divName){
   var el;
   var acko;
   try {el = document.getElementById(divName);}catch(er){return;}
   try {acko = document.getElementById(divName + "_a");}catch(er){}
   if (el){el.style.display = el.style.display=="none"?"block":"none";}
   if (acko){acko.innerHTML = el.style.display=="none"?"viac info »":"« spä¯";} 
}