function click(e) {
	if (document.all) {
		if (event.button==2||event.button==3) {
			oncontextmenu='return false';
		}
	}
	if (document.layers) {
		if (e.which == 3) {
			oncontextmenu='return false';
		}
	}
 }
        if (document.layers) {
	document.captureEvents(Event.MOUSEDOWN);
 }
document.onmousedown=click;
document.oncontextmenu = new Function("return false;")