function right (e) {if (navigator.appName== 'Netscape' && (e.which == 3 || e.which ==2)) return false; else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button == 2 || event.button == 3)) {alert (" >> Lo siento si quereis alguna cosa enviarme un e-mail << "); return false;} return true;} 
document.onmousedown=right;
document.onmouseup=right;
if (document.layers)
window.captureEvents
(Event.MOUSEDOWN) ;
if (document.layers)
window.captureEvents
(Event.MOUSEUP) ;
window.onmousedown=right;
window.onmouseup=right;