function rf() 
{return false; } 
document.oncontextmenu = rf 
function keydown() 
{if(event.ctrlKey ==true || event.keyCode ==93 || event.shiftKey ==true){return false;} } 
document.onkeydown =keydown 
function drag() 
{return false;} 
document.ondragstart=drag 
function stopmouse(e) { 
if (navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2)) 
return false; } 
document.onmousedown=stopmouse; 
if (document.layers) 
window.captureEvents(Event.MOUSEDOWN); 
window.onmousedown=stopmouse;