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

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

function DDimgOn(imgName,divName) {
	if (document.images) {
		if(document.layers) {
			document.layers[divName].document.images[imgName].src = eval(imgName + "On").src;
		} else {
			document.images[imgName].src = eval(imgName + "On").src;
		}
	}
}

function DDimgOff(imgName,divName) {
	if (document.images) {
		if(document.layers) {
			document.layers[divName].document.images[imgName].src = eval(imgName + "Off").src;
		} else {
			document.images[imgName].src = eval(imgName + "Off").src;
		}
	}
}