<!--
var ErrMsg = "Lo sentimos, pero esto no puede hacerlo";
function disableRightClick(btnClick) {
  if (navigator.appName == "Netscape" && btnClick.which == 3) {// check for netscape and right click
	alert(ErrMsg);
	return false;
  }
  else if (navigator.appName =="Microsoft Internet Explorer" && event.button == 2) { // for IE and Right Click
	alert(ErrMsg);
	return false;
  }
}
document.onmousedown = disableRightClick;
//-->