if (document.images) {
	img1on = new Image();
	img1on.src = "/images/navHomeOver.jpg";
	
	img1off = new Image();
	img1off.src = "/images/navHomeOff.jpg";
	
	img2on = new Image();
	img2on.src = "/images/navHowOver.jpg";
	
	img2off = new Image();
	img2off.src = "/images/navHowOff.jpg";
	
	img3on = new Image();
	img3on.src = "/images/navWhyOver.jpg";
	
	img3off = new Image();
	img3off.src = "/images/navWhyOff.jpg";
	
	img4on = new Image();
	img4on.src = "/images/navTuitionOver.jpg";
	
	img4off = new Image();
	img4off.src = "/images/navTuitionOff.jpg";
	
	img5on = new Image();
	img5on.src = "/images/navContactOver.jpg";
	
	img5off = new Image();
	img5off.src = "/images/navContactOff.jpg";
	
	
	
	img7on = new Image();
	img7on.src = "/images/navInboxOver.gif";
	
	img7off = new Image();
	img7off.src = "/images/navInboxOff.gif";
	
	img8on = new Image();
	img8on.src = "/images/navSentOver.gif";
	
	img8off = new Image();
	img8off.src = "/images/navSentOff.gif";
	
	img9on = new Image();
	img9on.src = "/images/navComposeOver.gif";
	
	img9off = new Image();
	img9off.src = "/images/navComposeOff.gif";
	
	img10on = new Image();
	img10on.src = "/images/navDeleteOver.gif";
	
	img10off = new Image();
	img10off.src = "/images/navDeleteOff.gif";
	
	
	
	img11on = new Image();
	img11on.src = "/images/navBoardOver.jpg";
	
	img11off = new Image();
	img11off.src = "/images/navBoardOff.jpg";
	
	
	
}
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");
	}
}