// JavaScript Document
if (document.images) {
  var mapoff = new Image(); // for the inactive image
  mapoff.src = "images/map-off.jpg";
		  
  var mapbarns = new Image(); // for the active image
  mapbarns.src = "images/map-barns.jpg";
	  
  var mapdon = new Image(); // for the active image
  mapdon.src = "images/map-don.jpg";
		  
  var maproth = new Image(); // for the active image
  maproth.src = "images/map-roth.jpg";
		  
  var mapsheff = new Image(); // for the active image
  mapsheff.src = "images/map-sheff.jpg";
	  
}

function inact() {
	if (document.images)
		document.images.map.src = mapoff.src;
	}

function doncaster() {
	if (document.images)
		document.images.map.src = mapdon.src;
	}

function rotherham() {
	if (document.images)
		document.images.map.src = maproth.src;
	}

function sheffield() {
	if (document.images)
		document.images.map.src = mapsheff.src;
	}

function barnsley() {
	if (document.images)
		document.images.map.src = mapbarns.src;
	}