if (document.images)
{	var lighthouses = new Image()
	lighthouses.src = "lighthouses1.gif"
	var lighthouses_a = new Image()
	lighthouses_a.src = "lighthouses2.gif"
	var maine = new Image()
	maine.src = "maine1.gif"
	var maine_a = new Image()
	maine_a.src = "maine2.gif"
	var tours = new Image()
	tours.src = "tours1.gif"
	var tours_a = new Image()
	tours_a.src = "tours2.gif"
	var policies = new Image()
	policies.src = "policies1.gif"
	var policies_a = new Image()
	policies_a.src = "policies2.gif"
	var gallery = new Image()
	gallery.src = "gallery1.gif"
	var gallery_a = new Image()
	gallery_a.src = "gallery2.gif"
}

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')
}