function oblibene(title,url){
  if (window.sidebar) { // Mozilla Firefox Bookmark
    window.sidebar.addPanel(title, url,"");
  } else if( window.external ) { // IE Favorite
    window.external.AddFavorite( url, title); }
  else if(window.opera && window.print) { // Opera Hotlist
    return true; }
 }


function clear_newsletter(obj) {
    if (obj.value == 'zadejte sv\u016fj e-mail') {
        obj.value = '';
    }
}
function return_newsletter(obj) {
    if (obj.value == '') {
        obj.value = 'zadejte sv\u016fj e-mail';
    }
}