if (document.images)
{	var home = new Image()
	home.src = "home1.jpg"
	var home_a = new Image()
	home_a.src = "home2.jpg"
    var charlestonbattery = new Image()
    charlestonbattery.src = "charlestonbattery1.jpg"
    var charlestonbattery_a = new Image()
    charlestonbattery_a.src = "charlestonbattery2.jpg"
	var map = new Image()
	map.src = "map1.jpg"
	var map_a = new Image()
	map_a.src = "map2.jpg"
	var photos = new Image()
	photos.src = "photos1.jpg"
	var photos_a = new Image()
	photos_a.src = "photos2.jpg"
	var game = new Image()
	game.src = "game1.jpg"
	var game_a = new Image()
	game_a.src = "game2.jpg"
	var links = new Image()
	links.src = "links1.jpg"
	var links_a = new Image()
	links_a.src = "links2.jpg"
}

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

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