// Stoppschild
function ShowHideSperre() {
  id="stoppschild"; 
  obj = (document.getElementById ? document.getElementById(id) : (document.all ? document.all[id] : (document.layers ? document.layers[id] : null))); 
  obj.style.visibility = (obj.style.visibility == 'visible' ? 'hidden' : 'visible');}; 

function HideSperre() {
  ShowHideSperre(); 
  document.cookie='OnlineStopGBook=1;path=/'
}; 

if(document.cookie.indexOf('OnlineStopGBook=1')==-1){ ShowHideSperre() };