//Left nav menus
function activate(imgName) {
    document.images[imgName].src = "img/menuBar.gif";
}

function deactivate(imgName) {
    document.images[imgName].src = "img/menuBarOff.gif";
 
}
//Top nav menus

function hoverOn(imgName) {
	var hoverImg = "img/"+imgName+"On.gif"
    document.images[imgName].src = hoverImg;
}

function hoverOff(imgName) {
	var hoverOff= "img/"+imgName+".gif"
    document.images[imgName].src = hoverOff;
 
}