var rcmsg="Right Click is not allowed.";
function IEClick()
{
	if (event.button==2)
	{
		alert(rcmsg);
		return false;
	}
}

function OthClick(e)
{
	if (document.layers||document.getElementById&&!document.all)
	{
		if (e.which==2||e.which==3)
		{
			alert(rcmsg);
			return false;
		}
	}
}
if (document.layers)
{
	document.captureEvents(Event.MOUSEDOWN);
	document.onmousedown=OthClick;
}
else if (document.all&&!document.getElementById)
{
	document.onmousedown=IEClick;
}
document.oncontextmenu=new Function("alert(rcmsg);return false");