<!--
// (c) http://www.datahelp.de
document.onmousedown = checkRMClick;
if (document.layers) { document.captureEvents(Event.MOUSEDOWN) }
function checkRMClick(evnt) {
    if (navigator.appName == "Netscape") {
    if (evnt.which != 1) { alert("Sorry ! Benutze die linke Maustaste !"); return false; }
    }
    else { if (event.button != 1) { alert("Sorry ! Benutze die linke Maustaste !"); return false; } }
}
//-->