var Home = new Image();
Home.src = "/img/nav/home.gif"
var HomeOn = new Image();
HomeOn.src = "/img/nav/home_ovr.gif"

var Company = new Image();
Company.src = "/img/nav/company.gif"
var CompanyOn = new Image();
CompanyOn.src = "/img/nav/company_ovr.gif"

var Services = new Image();
Services.src = "/img/nav/services.gif"
var ServicesOn = new Image();
ServicesOn.src = "/img/nav/services_ovr.gif"

var Screening = new Image();
Screening.src = "/img/nav/screening.gif"
var ScreeningOn = new Image();
ScreeningOn.src = "/img/nav/screening_ovr.gif"

var Contact = new Image();
Contact.src = "/img/nav/contact.gif"
var ContactOn = new Image();
ContactOn.src = "/img/nav/contact_ovr.gif"