var message="Pošli stránku svojim priateľom!";

function click(e){
if (document.all){if(event.button>=2)
	{alert(message);return false;}}
if (document.layers){if (e.which>=2)
	{alert(message);return false;}}
}
if (document.layers) window.captureEvents(Event.MOUSEDOWN);
document.onmousedown=click;
window.onmousedown=click;