if ((navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 3)
|| (parseInt(navigator.appVersion) >= 4))
        version = "ok";
        else version = "?";

if (version == "ok")
{
        var imgDir = "img/";

n0on = new Image();
n0on.src = imgDir + "btnHome_on.jpg";
n0off = new Image();
n0off.src = imgDir + "btnHome.jpg"; 

n1on = new Image();
n1on.src = imgDir + "btnDovesiamo_on.jpg";
n1off = new Image();
n1off.src = imgDir + "btnDovesiamo.jpg"; 

n2on = new Image();
n2on.src = imgDir + "btnServizi_on.jpg";
n2off = new Image();
n2off.src = imgDir + "btnServizi.jpg"; 

n3on = new Image();
n3on.src = imgDir + "btnTariffe_on.jpg";
n3off = new Image();
n3off.src = imgDir + "btnTariffe.jpg"; 

n4on = new Image();
n4on.src = imgDir + "btnPrenotazioni_on.jpg";
n4off = new Image();
n4off.src = imgDir + "btnPrenotazioni.jpg"; 	

n5on = new Image();
n5on.src = imgDir + "btnDovesiamoEN_on.jpg";
n5off = new Image();
n5off.src = imgDir + "btnDovesiamoEN.jpg"; 

n6on = new Image();
n6on.src = imgDir + "btnServiziEN_on.jpg";
n6off = new Image();
n6off.src = imgDir + "btnServiziEN.jpg"; 

n7on = new Image();
n7on.src = imgDir + "btnTariffeEN_on.jpg";
n7off = new Image();
n7off.src = imgDir + "btnTariffeEN.jpg"; 

n8on = new Image();
n8on.src = imgDir + "btnPrenotazioniEN_on.jpg";
n8off = new Image();
n8off.src = imgDir + "btnPrenotazioniEN.jpg"; 	


}

 function turnOn(img) {
   if (version == "ok")
	{
  	eval("document."+img).src = eval(img+"on").src;
	}
}

 function turnOff(img) {
   if (version == "ok")
	{
   	eval("document."+img).src = eval(img+"off").src;
	}
}