if (document.images) {
	// load the images
	var homeoff		    = new Image();
	homeoff.src		    = "http://www.materialdreams.com/images/homeoff.gif";
	var homeon		    = new Image();
	homeon.src		    = "http://www.materialdreams.com/images/homeon.gif";
	var newsoff		    = new Image();
	newsoff.src		    = "http://www.materialdreams.com/images/newsoff.gif";
	var newson		    = new Image();
	newson.src		    = "http://www.materialdreams.com/images/newson.gif";
	var productsoff		= new Image();
	productsoff.src		= "http://www.materialdreams.com/images/productsoff.gif";
	var productson		= new Image();
	productson.src		= "http://www.materialdreams.com/images/productson.gif";
	var scriptsoff		= new Image();
	scriptsoff.src		= "http://www.materialdreams.com/images/scriptsoff.gif";
	var scriptson		= new Image();
	scriptson.src		= "http://www.materialdreams.com/images/scriptson.gif";
	var downloadsoff	= new Image();
	downloadsoff.src	= "http://www.materialdreams.com/images/downloadsoff.gif";
	var downloadson		= new Image();
	downloadson.src		= "http://www.materialdreams.com/images/downloadson.gif";
	var registrationoff	= new Image();
	registrationoff.src	= "http://www.materialdreams.com/images/registrationoff.gif";
	var registrationon	= new Image();
	registrationon.src	= "http://www.materialdreams.com/images/registrationon.gif";
	var linksoff		= new Image();
	linksoff.src		= "http://www.materialdreams.com/images/linksoff.gif";
	var linkson		    = new Image();
	linkson.src		    = "http://www.materialdreams.com/images/linkson.gif";
	var contactoff		= new Image();
	contactoff.src		= "http://www.materialdreams.com/images/contactoff.gif";
	var contacton		= new Image();
	contacton.src		= "http://www.materialdreams.com/images/contacton.gif";
	var forumoff		= new Image();
	forumoff.src		= "http://www.materialdreams.com/images/forumoff.gif";
	var forumon			= new Image();
	forumon.src			= "http://www.materialdreams.com/images/forumon.gif";
}

function actMenuItem(imgName) {
	act(imgName);
	inact(defImg);
}

function inactMenuItem(imgName) {
	inact(imgName);
	act(defImg);
}

function act(imgName) {
	if (document.images) 
		document.images[imgName].src = eval(imgName + "on.src");
}

function inact(imgName) {
	if (document.images)
		document.images[imgName].src = eval(imgName + "off.src");
}