function on(n)
{
	if (n=='n')		{s1('_n','_n','');mapt.innerHTML='North Wales';}
	if (n=='s')		{s1('','_s','_s');mapt.innerHTML='South Wales';}
}

function off()
{
	s1('','','');
	mapt.innerHTML='';
}

function s1(n1,n2,n3) {
	document.images.n.src = "map/wales_n" + n1 + ".gif"; 
	document.images.s1.src = "map/wales_s1" + n2 + ".gif"; 
	document.images.s.src = "map/wales_s" + n3 + ".gif"; }