with(document){
     writeln('<style type="text\/css">                           ');
     writeln('  #bookmark {           color:#be0000;             ');
     writeln('              font-weight:bold;                    ');
     writeln('              FONT-FAMILY:Geneva, Arial, verdana, MS Sans Serif;font-size: 11px; ');
     writeln('              cursor:      pointer;                ');
     writeln('              cursor:      hand;                   ');
     writeln('  }                                                ');
     writeln('<\/style>                                          ');
     writeln('<div id="bookmark">&nbsp;<IMG SRC="img/pref.gif" border="0" alt="AGGIUNGI AI PREFERITI" title="AGGIUNGI AI PREFERITI" align="absmiddle"> aggiungi ai preferiti <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;add to favorites</div>      ');
}    document.close();

var IE = navigator.appName.match(/(Microsoft Internet Explorer)/gi),
    NS = navigator.appName.match(/(Netscape)/gi),
    OP = navigator.appName.match(/(Opera)/gi),
    BK = document.getElementById('bookmark');
    BK.onmouseout = function(){
       window.status = '';
       return true;
    }

    if(IE && document.uniqueID){
       BK.onclick = function(){
          window.external.AddFavorite(location.href,document.title);
       }
       BK.onmouseover = function(){
          window.status='Aggiungi ai preferiti';
          return true;
       }
    }

    else if(OP || IE && !document.uniqueID){
       BK.onclick = function(){
          alert('Premi Ctrl & T\nper aggiungere ai preferiti');
       }
       BK.onmouseover = function(){
          window.status='Premi Ctrl & T per aggiungere ai preferiti';
          return true;
       }
    }

    else if(NS){
       BK.onclick = function(){
          alert('Premi Ctrl & D per aggiungere ai preferiti\n Press Ctrl & D to bookmark');
       }
       BK.onmouseover = function(){
          window.status='Premi Ctrl & D per aggiungere ai preferiti';
          return true;
       }
    }

    else{ BK.innerHTML = '' }