document.onmousedown=click;
document.onkeydown=click;
if (document.layers) window.captureEvents(Event.MOUSEDOWN); window.onmousedown=click;
if (document.layers) window.captureEvents(Event.KEYDOWN); window.onkeydown=click;
function click(e){
	if (navigator.appName == 'Netscape'){
		if ((e.which != 1) && (e.which !=3)) {return false;}}
	if (navigator.appName == "Microsoft Internet Explorer"){
		if ((event.button != 1) && (event.button !=2)) {return false;}}}