if ( document.images )
{
	img1on = new Image();
	img1on.src = "home02.gif";
	img1off = new Image();
	img1off.src = "home01.gif";

	img2on = new Image();
	img2on.src = "contact02.gif";
	img2off = new Image();
	img2off.src = "contact01.gif";

	img3on = new Image();
	img3on.src = "iris02.gif";
	img3off = new Image();
	img3off.src = "iris01.gif";

	img4on = new Image();
	img4on.src = "location02.gif";
	img4off = new Image();
	img4off.src = "location01.gif";
	
	img5on = new Image();
	img5on.src = "team02.gif";
	img5off = new Image();
	img5off.src = "team01.gif";	

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