//A general rollover function for image names following the +n for on naming system
function rollOver(ImageName){
	if (document.all){
		document.all[ImageName].src=eval(ImageName + "n" + ".src");
	}
	else if(document.getElementById){
		document.getElementById(ImageName).src=eval(ImageName + "n" + ".src");
	}
	else if(document.layers){
		var newImageName = document.images[ImageName];
		var newImageSource = ImageName + "n" + ".src";
		newImageName.src = eval(newImageSource);
	}
}

//A general rollover function for image names following the +f for off naming system
function rollOut(ImageName){
	if (document.all){
		document.all[ImageName].src=eval(ImageName + "f" + ".src");
	}
	else if(document.getElementById){
		document.getElementById(ImageName).src=eval(ImageName + "f" + ".src");
	}
	else if(document.layers){
		var newImageName = document.images[ImageName];
		var newImageSource =  ImageName + "f" + ".src";
		newImageName.src = eval(newImageSource);
	}
}