var IE;
var NN;

if(navigator.appName=="Microsoft Internet Explorer")
{
	IE=true;
}

if(navigator.appName=="Netscape")
{
	NN=true;
} 


function right(click)
{
	if(IE && (event.button==2 || event.button==3))
	{
		alert("The right mouse click has been disabled.");
		return false;
	}

	if(NN && (click.which==2 || click.which==3))
	{
		alert("The right mouse click has been disabled.");
		return false;
	}

return false;
}


if (document.layers) window.captureEvents(Event.MOUSEDOWN);
if (document.layers) window.captureEvents(Event.MOUSEUP);
document.onmousedown=right;
document.onmouseup=right;
window.document.layers=right;