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) {
 a1n=ImgPreload('../images/sottomenu01.gif');
 a1h=ImgPreload('../images/sottomenu01x.gif');
 a2n=ImgPreload('../images/sottomenu02.gif');
 a2h=ImgPreload('../images/sottomenu02x.gif');
 a3n=ImgPreload('../images/sottomenu03.gif');
 a3h=ImgPreload('../images/sottomenu03x.gif');
 a4n=ImgPreload('../images/sottomenu04.gif');
 a4h=ImgPreload('../images/sottomenu04x.gif');
 a5n=ImgPreload('../images/sottomenu05.gif');
 a5h=ImgPreload('../images/sottomenu05x.gif');
 a7n=ImgPreload('../images/sottomenu07.gif');
 a7h=ImgPreload('../images/sottomenu07x.gif');

 a10n=ImgPreload('../images/sottomenu10.gif');
 a10h=ImgPreload('../images/sottomenu10x.gif');
 a11n=ImgPreload('../images/sottomenu11.gif');
 a11h=ImgPreload('../images/sottomenu11x.gif');
 a18n=ImgPreload('../images/sottomenu18.gif');
 a18h=ImgPreload('../images/sottomenu18x.gif');
 
 a6n=ImgPreload('../images/sottomenu06.gif');
 a6h=ImgPreload('../images/sottomenu06x.gif');
 a8n=ImgPreload('../images/sottomenu08.gif');
 a8h=ImgPreload('../images/sottomenu08x.gif');
 a9n=ImgPreload('../images/sottomenu09.gif');
 a9h=ImgPreload('../images/sottomenu09x.gif');
 
 a12n=ImgPreload('../images/sottomenu12.gif');
 a12h=ImgPreload('../images/sottomenu12x.gif');
 a17n=ImgPreload('../images/sottomenu17.gif');
 a17h=ImgPreload('../images/sottomenu17x.gif');
 ad18n=ImgPreload('../images/sottomenu-neuit.gif');
 ad18f=ImgPreload('../images/sottomenu-neuitx.gif');

 a16n=ImgPreload('../images/sottomenu16.gif');
 a16h=ImgPreload('../images/sottomenu16x.gif');
 a13n=ImgPreload('../images/sottomenu13.gif');
 a13h=ImgPreload('../images/sottomenu13x.gif');
 a14n=ImgPreload('../images/sottomenu14.gif');
 a14h=ImgPreload('../images/sottomenu14x.gif');
 a15n=ImgPreload('../images/sottomenu15.gif');
 a15h=ImgPreload('../images/sottomenu15x.gif');

 a19n=ImgPreload('../images/sottomenu19-i.gif');
 a19h=ImgPreload('../images/sottomenu19x-i.gif');
 a20n=ImgPreload('../images/sottomenu20-i.gif');
 a20h=ImgPreload('../images/sottomenu20x-i.gif'); 
 a21n=ImgPreload('../images/sottomenu21-i.gif');
 a21h=ImgPreload('../images/sottomenu21x-i.gif'); 
 
 a22n=ImgPreload('../images/sottomenu22.gif');
 a22h=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');
 }