if (document.images ) {
	bigMap= new Image(516,460);
	bigMap.src='img/map-lg-alloff.jpg';
	
	mapa= new Image(516,460);
	mapa.src='img/map-lg-Aroll.jpg';
	
	mapb= new Image(516,460);
	mapb.src='img/map-lg-Broll.gif';
	
	mapc = new Image(516,460);
	mapc.src='img/map-lg-Croll.gif';
	
	mapd = new Image(516,460);
	mapd.src='img/map-lg-Droll.gif';
	
	mapFloor = new Image(516,460);
	mapFloor.src='img/map-lg-floorroll.gif';
}