window.onclick=function(event) {
	event = event || window.event;
	var rightclick=(event.which == 3) || (event.button == 2);
	if (rightclick) {
		if (event.stopPropagation) event.stopPropagation();
		if (event.preventDefault) event.preventDefault();
		return false;
	};
};

window.onmouseup=window.onclick;
window.onmousedown=window.onclick;
document.onclick=window.onclick;
document.onmouseup=window.onclick;
document.onmousedown=window.onclick;
document.oncontextmenu=function(){return false;}