function menuHover(source,action) {
	var menuItem = document.getElementById(source);
	var imgSrc = menuItem.src;
	
	switch (action) {
		case "on":
			menuItem.src = imgSrc.replace(".png","") + "_on.png";
			break;
		case "off":
			menuItem.src = imgSrc.replace("_on","");
			break;
	}
}	
function toggleTextBar(source) {
	var box = document.getElementById(source);
	box.value = "";
}