// Active Images
if (document.images) {
	img1on = new Image();      
	img1on.src = "img/HomeButtonOver.jpg"; 
	img2on = new Image(); 
	img2on.src = "img/ProductsButtonOver.jpg";  
	img3on = new Image();
	img3on.src = "img/CustomBuiltButtonOver.jpg";
	img4on = new Image();
	img4on.src = "img/AboutUsButtonOver.jpg";
	img5on = new Image();
	img5on.src = "img/ContactInfoButtonOver.jpg";

	// default images                                       
	img1off = new Image();      
	img1off.src = "img/HomeButton.jpg"; 
	img2off = new Image();          
	img2off.src = "img/ProductsButton.jpg"; 
	img3off = new Image();
	img3off.src = "img/CustomBuiltButton.jpg";
	img4off = new Image();
	img4off.src = "img/AboutUsButton.jpg";
	img5off = new Image();
	img5off.src = "img/ContactInfoButton.jpg";
}

// Function to 'activate' images
function imgOn(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "on.src");
	}
}

// Function to 'deactivate' images
function imgOff(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "off.src");
	}
}