browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if(browserName=="Netscape" && browserVer >= 3) 
ver = "yes";
else
ver = "yes";
if(ver == "yes")
{
    a1 = new Image(); a1.src ="img/nav/home_out.gif";
    a2 = new Image(); a2.src ="img/nav/home_in.gif";
    b1 = new Image(); b1.src ="img/nav/saconney_out.gif";
    b2 = new Image(); b2.src ="img/nav/saconney_in.gif";
    c1 = new Image(); c1.src ="img/nav/servizi_out.gif";
    c2 = new Image(); c2.src ="img/nav/servizi_in.gif";
    d1 = new Image(); d1.src ="img/nav/moduli_out.gif";
    d2 = new Image(); d2.src ="img/nav/moduli_in.gif";
    e1 = new Image(); e1.src ="img/nav/requisiti_out.gif";
    e2 = new Image(); e2.src ="img/nav/requisiti_in.gif";
    f1 = new Image(); f1.src ="img/nav/link_out.gif";
    f2 = new Image(); f2.src ="img/nav/link_in.gif";
    g1 = new Image(); g1.src ="img/nav/news_out.gif";
    g2 = new Image(); g2.src ="img/nav/news_in.gif";
    h1 = new Image(); h1.src ="img/nav/job_out.gif";
    h2 = new Image(); h2.src ="img/nav/job_in.gif";
    i1 = new Image(); i1.src ="img/nav/contact_out.gif";
    i2 = new Image(); i2.src ="img/nav/contact_in.gif";
    ba1 = new Image(); ba1.src ="img/nav/studio_out.gif";
    ba2 = new Image(); ba2.src ="img/nav/studio_in.gif";
    bb1 = new Image(); bb1.src ="img/nav/professionisti_out.gif";
    bb2 = new Image(); bb2.src ="img/nav/professionisti_in.gif";
}

function active(imgName)
{
    if (ver == "yes") 
	{
	    img1 = eval(imgName + "1.src");
	    document [imgName].src = img1;
	}
}

function inactive(imgName)
{
    if (ver == "yes") 
	{
	    img2 = eval(imgName + "2.src");
	    document [imgName].src = img2;
	}
}