var warnMessage = "";
function clickIE() {
	if (document.all) {
		(warnMessage);
		return false;
	}
}
function clickNS(e) {
	if (document.layers || (document.getElementById && !document.all)) {
		if (e.which == 2 || e.which == 3) {
			(warnMessage);
			return false;
		}
	}
}

if (document.layers) {
	document.captureEvents(Event.MOUSEDOWN);
	document.onmousedown = clickNS;
} else {
	document.onmouseup = clickNS;
	document.oncontextmenu = clickIE;
}
document.oncontextmenu = function() { return false; }