function rollOver(normal, hover) {
	if (document.images) {
		this.normal = new Image();
		this.normal.src = normal;
		this.hover = new Image();
		this.hover.src = hover;
	}
}

function actMenuItem(name) {
	if (document.images) {
		eval("document.images['" + name + "'].src = " + name + ".hover.src;");
	}
}

function inactMenuItem(name) {
	if (document.images)
		eval("document.images['" + name + "'].src = " + name + ".normal.src;");
}

var home = new rollOver("images/header/home.gif","images/header/home-on.gif");
var about = new rollOver("images/header/about.gif","images/header/about-on.gif");
var galleries = new rollOver("images/header/galleries.gif","images/header/galleries-on.gif");
var contact = new rollOver("images/header/contact.gif","images/header/contact-on.gif");

var previous = new rollOver("images/footer/previous.gif","images/footer/previous-on.gif");
var next = new rollOver("images/footer/next.gif","images/footer/next-on.gif");
var back = new rollOver("images/footer/back.gif","images/footer/back-on.gif");

var gallery1 = new rollOver("images/footer/gallery1.gif","images/footer/gallery1-on.gif");
var gallery2 = new rollOver("images/footer/gallery2.gif","images/footer/gallery2-on.gif");
var gallery3 = new rollOver("images/footer/gallery3.gif","images/footer/gallery3-on.gif");
var gallery4 = new rollOver("images/footer/gallery4.gif","images/footer/gallery4-on.gif");