if (document.images != null) {
    services0 = new Image();services0.src  = "http://www.novasa.com/images/navigation_services_0.png";
    services1 = new Image();services1.src  = "http://www.novasa.com/images/navigation_services_1.png";
    services2 = new Image();services2.src  = "http://www.novasa.com/images/navigation_services_2.png";
    services3 = new Image();services3.src  = "http://www.novasa.com/images/navigation_services_3.png";
    services4 = new Image();services4.src  = "http://www.novasa.com/images/navigation_services_4.png";
    services5 = new Image();services5.src  = "http://www.novasa.com/images/navigation_services_5.png";
    apps0 = new Image();apps0.src  = "http://www.novasa.com/images/navigation_apps_0.png";
    apps1 = new Image();apps1.src  = "http://www.novasa.com/images/navigation_apps_1.png";
    apps2 = new Image();apps2.src  = "http://www.novasa.com/images/navigation_apps_2.png";
    apps3 = new Image();apps3.src  = "http://www.novasa.com/images/navigation_apps_3.png";
    apps4 = new Image();apps4.src  = "http://www.novasa.com/images/navigation_apps_4.png";
    apps5 = new Image();apps5.src  = "http://www.novasa.com/images/navigation_apps_5.png";    
    company0 = new Image();company0.src  = "http://www.novasa.com/images/navigation_company_0.png";
    company1 = new Image();company1.src  = "http://www.novasa.com/images/navigation_company_1.png";
    company2 = new Image();company2.src  = "http://www.novasa.com/images/navigation_company_2.png";
    company3 = new Image();company3.src  = "http://www.novasa.com/images/navigation_company_3.png";
    company4 = new Image();company4.src  = "http://www.novasa.com/images/navigation_company_4.png";
    company5 = new Image();company5.src  = "http://www.novasa.com/images/navigation_company_5.png";
    contact0 = new Image();contact0.src  = "http://www.novasa.com/images/navigation_contact_0.png";
    contact1 = new Image();contact1.src  = "http://www.novasa.com/images/navigation_contact_1.png";
    contact2 = new Image();contact2.src  = "http://www.novasa.com/images/navigation_contact_2.png";
    contact3 = new Image();contact3.src  = "http://www.novasa.com/images/navigation_contact_3.png";
    contact4 = new Image();contact4.src  = "http://www.novasa.com/images/navigation_contact_4.png";
    contact5 = new Image();contact5.src  = "http://www.novasa.com/images/navigation_contact_5.png";
    
    var servicesI = 0, servicesInTimeout = servicesOutTimeout = null, servicesOutTimer = servicesInTimer = false;
    var appsI = 0, appsInTimeout = appsOutTimeout = null, appsOutTimer = appsInTimer = false;    
    var companyI = 0, companyInTimeout = companyOutTimeout = null, companyOutTimer = companyInTimer = false;
    var contactI = 0, contactInTimeout = contactOutTimeout = null, contactOutTimer = contactInTimer = false;
}

function fadeIn(imgName) {
    if (document.images != null) {
        var i = eval(imgName + 'I') + 1;
        eval(imgName + 'I' + '= i');
        if (eval(imgName + 'OutTimer')) clearTimeout(eval(imgName + 'OutTimeout'));
        document.images[imgName].src = eval(imgName + i + '.src');
        eval(imgName + 'InTimer = true');
        if (i<5) eval(imgName + 'InTimeout = setTimeout(\'fadeIn("\'+imgName+\'")\',50)');
        else     eval(imgName + 'InTimer = false');
    }
}

function fadeOut(imgName) {
    if (document.images != null) {
        var i = eval(imgName + 'I') - 1;
        eval(imgName + 'I' + '= i');
        if (eval(imgName + 'InTimer')) clearTimeout(eval(imgName + 'InTimeout'));
        document.images[imgName].src = eval(imgName + i + '.src');
        eval(imgName + 'OutTimer = true');
        if (i>0) eval(imgName + 'OutTimeout = setTimeout(\'fadeOut("\'+imgName+\'")\',100)');
        else     eval(imgName + 'OutTimer = false');
    }
}