// JavaScript Document
function key(){ 
if(event.altKey){ } 
//½ûÖ¹alt 
if(event.ctrlKey){ } 
//½ûÖ¹ctrl 
return false;} 
document.onkeydown=key; 
if (window.Event) 
document.captureEvents(Event.MOUSEUP); 
function norightclick(e){ 
if (window.Event){ 
if (e.which == 2 || e.which == 3) 
return false;} 
else 
if (event.button == 2 || event.button == 3){ 
event.cancelBubble = true 
event.returnValue = false; 
return false;} 
} 
function Click(){ 
window.event.returnValue=false; 
} 
document.oncontextmenu=Click;