function noclick (e) {
  if (!e)
    e = window.event;
  if ((e.type && e.type == "contextmenu") || (e.button && e.button == 2) || (e.which && e.which == 3)) {
   

    return false;
  }
  
}

function Tastendruck (Ereignis) {

 
    return false; 
  
 }
 function Tastendruck2 (Ereignis) {
    
 
    
    return false; 
  
 }
 
if ( navigator.appName == 'Microsoft Internet Explorer' ) {
document.onkeydown= Tastendruck;
} else {
  
document.onkeypress= Tastendruck2;
}


if (document.layers)
  document.captureEvents(Event.MOUSEDOWN);

document.oncontextmenu = noclick;