var gMapImages = new Array;
var gCurrentMapId = 0;

for (var i = 0; i < 5; i++)
{
	gMapImages[i] = new Image();
	gMapImages[i].src = "/global/images/home/map" + i + ".gif";
}

function SwapImage(sourceImage, mapImageId)
{
	if (!mapImageId) { mapImageId = gCurrentMapId; }
	if (!document.getElementById) { return; }
	var img = document.images[sourceImage];
	img.src = gMapImages[mapImageId].src;
}

function ShowRegion(regionId) 
{
	var div;
	gCurrentMapId = regionId;
	for (var i = 1; i < 5; i++)
	{
		div = document.getElementById("region" + i);
		if (div) { div.style.display = "none"; }
	}
	div = document.getElementById("region" + regionId);
	
	if (div) { div.style.display = "block"; }
	
}  

function HideRegion(regionId) 
{
	gCurrentMapId = 0;
	SwapImage("map0", gCurrentMapId); 
	document.getElementById("region" + regionId).style.display = "none";
}