function changebackground(region, visible) {
/*	if (visible) {
		if(region < 8)
			document.getElementById('map').style.backgroundPosition = "0px -"+(region*160)+"px";
		else
			document.getElementById('map').style.backgroundPosition = "-200px -"+((region-7)*160)+"px";
	}
	else {
		if(region < 8)
			document.getElementById('map').style.backgroundPosition = "0px -"+(35+ (region+8)*160)+"px";
		else
			document.getElementById('map').style.backgroundPosition = "-200px -"+(35+ (region+1)*160)+"px";
	}*/
		if(region < 8)
			document.getElementById('map').style.backgroundPosition = "0px -"+(region*160)+"px";
		else
			document.getElementById('map').style.backgroundPosition = "-200px -"+((region-7)*160)+"px";
	
}