On = new Image();
On.src = "on/x.gif";


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

function menuOn(section) {
	var menu = "menu_" + section;
	if (document.getElementById) {
		document.getElementById([menu]).style.visibility="visible";
	}
}
function menuOff(section) {
	var menu = "menu_" + section;
	if (document.getElementById) {
		document.getElementById([menu]).style.visibility="hidden";
	}
}