if (document.images) 
{
	cityInfoOff = new Image();
	cityInfoOff.src = "graphics/cityInfo.gif";
	cityInfoOn = new Image();
	cityInfoOn.src = "graphics/cityInfoover.gif";
	newsOff = new Image();
	newsOff.src = "graphics/news.gif";
	newsOn = new Image();
	newsOn.src = "graphics/newsover.gif";
	factsOff = new Image();
	factsOff.src = "graphics/facts.gif";
	factsOn = new Image();
	factsOn.src = "graphics/factsover.gif";
	moreInfoOff = new Image();
	moreInfoOff.src = "graphics/moreInfo.gif";
	moreInfoOn = new Image();
	moreInfoOn.src = "graphics/moreInfoover.gif";
}