var homeon = new Image();
homeon.src = "images/nav_home_on.gif";
var homeoff = new Image();
homeoff.src = "images/nav_home_off.gif";

var restaurantson = new Image();
restaurantson.src = "images/nav_restaurants_on.gif";
var restaurantsoff = new Image();
restaurantsoff.src = "images/nav_restaurants_off.gif";

var newspresson = new Image();
newspresson.src = "images/nav_newspress_on.gif";
var newspressoff = new Image();
newspressoff.src = "images/nav_newspress_off.gif";

var contactuson = new Image();
contactuson.src = "images/nav_contactus_on.gif";
var contactusoff = new Image();
contactusoff.src = "images/nav_contactus_off.gif";



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

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