var scale = 10000;
var scales = new Array(5000,10000,25000,50000,100000);

function getmap() {
	document.multimap.src = 'http://www.multimap.com/clients/gif.cgi?client=church&width=500&height=320&pc=NN1 5AW&scale='+scale;
}

function zoomIn() {
	if (scale == scales[0]) { window.alert("You are already zoomed in to the most detailed level available."); }
	else {
		for (n = 0; n < scales.length; n++) {
			if (scales[n] == scale) { n--; scale = scales[n]; break; }
	}
		}
}

function zoomOut() {
	if (scale == scales[scales.length-1]) { window.alert("You are already zoomed out to the furthest level available."); }
	else {
		for (n = 0; n < scales.length; n++) {
			if (scales[n] == scale) { n++; scale = scales[n]; break;}
		}
	}
}