about = new Image()
about.src = "/img/menu-about.gif";
abouton = new Image();
abouton.src = "/img/menu-about-on.gif";
contact = new Image()
contact.src = "/img/menu-contact.gif";
contacton = new Image();
contacton.src = "/img/menu-contact-on.gif";
investors = new Image()
investors.src = "/img/menu-investors.gif";
investorson = new Image();
investorson.src = "/img/menu-investors-on.gif";
portfolio = new Image()
portfolio.src = "/img/menu-portfolio.gif";
portfolioon = new Image();
portfolioon.src = "/img/menu-portfolio-on.gif";
industrial = new Image()
industrial.src = "/img/home-industrial.gif";
industrialon = new Image();
industrialon.src = "/img/home-industrial-on.gif";
storage = new Image()
storage.src = "/img/home-storage.gif";
storageon = new Image();
storageon.src = "/img/home-storage-on.gif";
aviation = new Image()
aviation.src = "/img/home-aviation.gif";
aviationon = new Image();
aviationon.src = "/img/home-aviation-on.gif";


function swap(item, mode) {
	if (mode == "on") {
		document.images[item].src = eval(item + "on.src");
	} else {
		document.images[item].src = eval(item + ".src");
	}
}