if(document.images)
{
	// Active Images

	var img1on = new Image();
	img1on.src = "images/buttons/home1.png";
	var img2on = new Image();
	img2on.src = "images/buttons/books1.png";
	var img3on = new Image();
	img3on.src = "images/buttons/contact1.png";
	
	var img4on = new Image();
	img4on.src = "images/buttons/next1.png";
	var img5on = new Image();
	img5on.src = "images/buttons/previous1.png";
	var img6on = new Image();
	img6on.src = "images/buttons/first1.png";
	var img7on = new Image();
	img7on.src = "images/buttons/last1.png";
	
	// Inactive Images

	var img1off = new Image();
	img1off.src = "images/buttons/home.png";
	var img2off = new Image();
	img2off.src = "images/buttons/books.png";
	var img3off = new Image();
	img3off.src = "images/buttons/contact.png";
	
	var img4off = new Image();
	img4off.src = "images/buttons/next.png";
	var img5off = new Image();
	img5off.src = "images/buttons/previous.png";
	var img6off = new Image();
	img6off.src = "images/buttons/first.png";
	var img7off = new Image();
	img7off.src = "images/buttons/last.png";
}

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

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