function rollover() {
	bName = navigator.appName;
	bVer = parseInt(navigator.appVersion);
	if ((bName == "Netscape" && bVer >=3)
	|| (bName == "Microsoft Internet Explorer" && bVer >=4))
		return 1;
	return 0;
}
function rollover_body(flag, dec, on, off)
{
	if (rollover()) {
		if (flag)
			document.images[dec].src = on.src;
		else
			document.images[dec].src = off.src;
	}
	return true;
}
function rollover_layer(flag, lay, dec, on, off)
{
	var x;
	if (navigator.appName == "Netscape") {
		x = document.layers[lay].document.images[dec];
	} else {
		x = document.images[dec];
	}
	if (flag)
		x.src = on.src;
	else
		x.src = off.src;
	return true;
}
if (rollover()) {
	Img1Off=new Image();
	Img1Off.src="../images/graphics/201055_thirds1.jpg";
	Img1On=new Image();
	Img1On.src="../images/graphics/201055_thirds2.jpg";

	Img2Off=new Image();
	Img2Off.src="../images/graphics/230287_thirds1.jpg";
	Img2On=new Image();
	Img2On.src="../images/graphics/230287_thirds2.jpg";
	
	Img3Off=new Image();
	Img3Off.src="../images/graphics/241664_thirds1.jpg";
	Img3On=new Image();
	Img3On.src="../images/graphics/241664_thirds2.jpg";
	
	Img4Off=new Image();
	Img4Off.src="../images/graphics/250855_thirds1.jpg";
	Img4On=new Image();
	Img4On.src="../images/graphics/250855_thirds2.jpg";
	
	Img5Off=new Image();
	Img5Off.src="../images/graphics/250407_thirds1.jpg";
	Img5On=new Image();
	Img5On.src="../images/graphics/250407_thirds2.jpg";
}
function Img1_hover(flag)
{
	rollover_body(flag, 'Img1', Img1On, Img1Off);
	return true;
}
function Img2_hover(flag)
{
	rollover_body(flag, 'Img2', Img2On, Img2Off);
	return true;
}  
function Img3_hover(flag)
{
	rollover_body(flag, 'Img3', Img3On, Img3Off);
	return true;
} 
function Img4_hover(flag)
{
	rollover_body(flag, 'Img4', Img4On, Img4Off);
	return true;
}
function Img5_hover(flag)
{  
	rollover_body(flag, 'Img5', Img5On, Img5Off);
	return true;
}