aboutOn = new Image();
aboutOn.src = "on/about.gif";

engineeringOn = new Image();
engineeringOn.src = "on/engineering.gif";

smallpartsOn = new Image();
smallpartsOn.src = "on/smallparts.gif";

toolingOn = new Image();
toolingOn.src = "on/tooling.gif";

laminationOn = new Image();
laminationOn.src = "on/lamination.gif";

militaryOn = new Image();
militaryOn.src = "on/military.gif";

function imgOn(imgName) {
	document [imgName].src = eval((imgName) + "On.src");
}
function imgOff(imgName) {
	document [imgName].src = "off/" + (imgName) + ".gif";
}