function openMenu(name) {
  if (document.getElementById) {
    document.getElementById(name).style.visibility="visible";
  } else if (document.all && !document.getElementById) {
           document.all[name].style.visibility="visible";
         }
}

function closeMenu(name) {
  if (document.getElementById) {
    document.getElementById(name).style.visibility="hidden";
  } else if (document.all && !document.getElementById) {
           document.all[name].style.visibility="hidden";
         }
}

function changeFlag(action, lang) {
  if (action == "over") { 
    source = "/images/flag_" + lang + "_on.gif";
  } else {
      source = "/images/flag_" + lang + "_off.gif";
    }
  document.images['flag_'+lang].src=source;
}

function winopen(url, w, h) {
  win = window.open(url, 'popup', 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=' + w + ', height=' + h);
  win.focus();
}