<!--

if (document.images) {
	var nav_homeA = new Image()
	nav_homeA.src = "images/nav_home_off.gif"
	var nav_homeZ = new Image()
	nav_homeZ.src = "images/nav_home_on.gif"		

	var nav_aboutA = new Image()
	nav_aboutA.src = "images/nav_about_off.gif"
	var nav_aboutZ = new Image()
	nav_aboutZ.src = "images/nav_about_on.gif"		

	var nav_exhibitionsA = new Image()
	nav_exhibitionsA.src = "images/nav_exhibitions_off.gif"
	var nav_exhibitionsZ = new Image()
	nav_exhibitionsZ.src = "images/nav_exhibitions_on.gif"		

	var nav_contactA = new Image()
	nav_contactA.src = "images/nav_contact_off.gif"
	var nav_contactZ = new Image()
	nav_contactZ.src = "images/nav_contact_on.gif"		

	var nav_linksA = new Image()
	nav_linksA.src = "images/nav_links_off.gif"
	var nav_linksZ = new Image()
	nav_linksZ.src = "images/nav_links_on.gif"		

}

function act(imgName) {
	if (document.images)
	document[imgName].src = eval(imgName + 'Z.src')
}

function inact(imgName) {
	if (document.images)
	document[imgName].src = eval(imgName + 'A.src')
}
// -->