function displayMap(parent)
{
	var img = parent.firstChild;
	
	if(img.src.indexOf("small") !== -1)
	{
		var loader = document.createElement("SPAN");
		parent.insertBefore(loader,img);
		img.onload = function(){parent.removeChild( loader );};
		img.src=img.src.replace("small", "big");
	}
	else img.src=img.src.replace("big", "small");
}