// declare images
var Default = new Image();
var AboutUs = new Image();
var Portfolio = new Image();
var Services = new Image();
var People = new Image();
var ContactUs = new Image();

// set image sources
Default.src = "Images/Nav/Default.gif";
AboutUs.src = "Images/Nav/AboutUs.gif";
Portfolio.src = "Images/Nav/Portfolio.gif";
Services.src = "Images/Nav/Services.gif";
People.src = "Images/Nav/People.gif";
ContactUs.src = "Images/Nav/ContactUs.gif";

// ChangeImage()
function ChangeImage(Image, NewImage)
{
	if (document.getElementById(Image).src != eval(NewImage + ".src"))
		document.getElementById(Image).src = eval(NewImage + ".src");
}