var message="Sorry, you do not have permission to right click on this page.";

var isie
if(navigator.appName=='Microsoft Internet Explorer') //check the browser
{  isie=true }

if(navigator.appName=='Netscape')
{  isnn=true }


function clickIE4(){
if (event.button==2){
alert(message);
return false;
}
}

function clickNS4(e){
if (document.layers||document.getElementById&&!document.all){
if (e.which==2||e.which==3){
alert(message);
return false;
}
}
}

if (document.layers){
document.captureEvents(Event.MOUSEDOWN);
document.onmousedown=clickNS4;

}
else if (document.all&&!document.getElementById){
document.onmousedown=clickIE4;
}

document.oncontextmenu=new Function("alert(message);return false")


function key(k)   
{
if(isie) {
		if(event.keyCode==17 || event.keyCode==18 || event.keyCode==93) {
			alert("Sorry, you do not have permission to press this key.") 
			return false;
		 } 
	}
	
//		if(isnn){
//		alert("Sorry, you do not have permission to press this key.") 
//		return false; } 

	
}

if (document.layers) window.captureEvents(Event.KEYPRESS);  
if (document.layers) window.captureEvents(Event.MOUSEDOWN);
if (document.layers) window.captureEvents(Event.MOUSEUP);
document.onkeydown=key;