BrowserOK =  (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || 
  ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 ))); 

function ImgPreload(img) {
 var a=new Image(); a.src=img; return a; 
 }

if(BrowserOK) {
 ad1n=ImgPreload('../images/sottomenu01-d.gif');
 ad1h=ImgPreload('../images/sottomenu01x-d.gif');
 ad2n=ImgPreload('../images/sottomenu02-d.gif');
 ad2h=ImgPreload('../images/sottomenu02x-d.gif');
 ad3n=ImgPreload('../images/sottomenu03-d.gif');
 ad3h=ImgPreload('../images/sottomenu03x-d.gif');
 ad4n=ImgPreload('../images/sottomenu04-d.gif');
 ad4h=ImgPreload('../images/sottomenu04x-d.gif');
 ad5n=ImgPreload('../images/sottomenu05-d.gif');
 ad5h=ImgPreload('../images/sottomenu05x-d.gif');
 ad7n=ImgPreload('../images/sottomenu07-d.gif');
 ad7h=ImgPreload('../images/sottomenu07x-d.gif');

 ad10n=ImgPreload('../images/sottomenu10-d.gif');
 ad10h=ImgPreload('../images/sottomenu10x-d.gif');
 ad11n=ImgPreload('../images/sottomenu11-d.gif');
 ad11h=ImgPreload('../images/sottomenu11x-d.gif');
 ad18n=ImgPreload('../images/sottomenu18-d.gif');
 ad18f=ImgPreload('../images/sottomenu18x-d.gif');

 ad6n=ImgPreload('../images/sottomenu06-d.gif');
 ad6h=ImgPreload('../images/sottomenu06x-d.gif');
 ad8n=ImgPreload('../images/sottomenu08-d.gif');
 ad8h=ImgPreload('../images/sottomenu08x-d.gif');
 ad9n=ImgPreload('../images/sottomenu09-d.gif');
 ad9h=ImgPreload('../images/sottomenu09x-d.gif');

 ad12n=ImgPreload('../images/sottomenu12-d.gif');
 ad12h=ImgPreload('../images/sottomenu12x-d.gif');
 ad17n=ImgPreload('../images/sottomenu17-d.gif');
 ad17h=ImgPreload('../images/sottomenu17x-d.gif');
 ad19n=ImgPreload('../images/sottomenu-neu.gif');
 ad19f=ImgPreload('../images/sottomenu-neux.gif');
 
 ad16n=ImgPreload('../images/sottomenu16-d.gif');
 ad16h=ImgPreload('../images/sottomenu16x-d.gif');
 ad13n=ImgPreload('../images/sottomenu13-d.gif');
 ad13h=ImgPreload('../images/sottomenu13x-d.gif');
 ad14n=ImgPreload('../images/sottomenu14-d.gif');
 ad14h=ImgPreload('../images/sottomenu14x-d.gif');
 ad15n=ImgPreload('../images/sottomenu15-d.gif');
 ad15h=ImgPreload('../images/sottomenu15x-d.gif');
 
 ad19n=ImgPreload('../images/sottomenu19-d.gif');
 ad19h=ImgPreload('../images/sottomenu19x-d.gif');
 ad20n=ImgPreload('../images/sottomenu20-d.gif');
 ad20h=ImgPreload('../images/sottomenu20x-d.gif');
 ad21n=ImgPreload('../images/sottomenu21-d.gif');
 ad21h=ImgPreload('../images/sottomenu21x-d.gif');
 
 ad22n=ImgPreload('../images/sottomenu22.gif');
 ad22h=ImgPreload('../images/sottomenu22x.gif');
 
 abarran=ImgPreload('../images/menubarra.gif');
 abarrah=ImgPreload('../images/menubarrax.gif'); 
 }

function gowindow(str, titolo,w,h) {
 openwin = window.open(str,titolo,'width='+ w +',height='+ h +',status=no,scrollbars=no,resizable=no,location=no,toolbar=no');
 }