if (document.images) {
	img1on = new Image();
	img1on.src = "/images/navHomeOver.gif";
	
	img1off = new Image();
	img1off.src = "/images/navHomeOff.gif";
	
	img2on = new Image();
	img2on.src = "/images/navStormMgmtOver.gif";
	
	img2off = new Image();
	img2off.src = "/images/navStormMgmtOff.gif";
	
	img3on = new Image();
	img3on.src = "/images/navDustMgmtOver.gif";
	
	img3off = new Image();
	img3off.src = "/images/navDustMgmtOff.gif";
	
	img4on = new Image();
	img4on.src = "/images/navStormFactsOver.gif";
	
	img4off = new Image();
	img4off.src = "/images/navStormFactsOff.gif";
	
	img5on = new Image();
	img5on.src = "/images/navDustFactsOver.gif";
	
	img5off = new Image();
	img5off.src = "/images/navDustFactsOff.gif";
	
	img6on = new Image();
	img6on.src = "/images/navContactOver.gif";
	
	img6off = new Image();
	img6off.src = "/images/navContactOff.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");
	}
}