           <!--
           if (document.layers){
           window.captureEvents(Event.MOUSEDOWN | Event.MOUSEUP)
           window.onmousedown=rightclick;
           window.onmouseup=rightclick;
           function rightclick(e) {
           if (e.which == 3) {
           // Put right mouse code here
           alert('Copyright beachten!');
           return false;
           }
           else {
           return true;
           }
           }
           }
           if (document.all){
           function click() {
           if (event.button==2) {
           alert('Copyright beachten!')
           }
           if (event.button==3) {
           alert('Copyright beachten!')}
           }
           document.onmousedown=click
           }
           // -->