function disableRightClick(e) {
	var message = "Right click disabled";
	if(!document.rightClickDisabled) {
	    if (document.layers) {
			document.captureEvents(Event.MOUSEDOWN);
			document.onmousedown = disableRightClick;
		} else {
			document.oncontextmenu = disableRightClick;
		}
	    return document.rightClickDisabled = true;
	}
	if(document.layers || (document.getElementById && !document.all)) {
	    if (e.which==2 || e.which==3) {
			//      alert(message);
			return false;
		}
	} else {
		//    alert(message);
	    return false;
	}
}

disableRightClick();