$(document).ready(function()
{
	$(".game").change(function()
	{
		var game=$(this).val();
		var dataString = 'game='+ game;
		$.ajax
		({
			type: "POST",
			url: "get_world_list.php",
			data: dataString,
			cache: false,
			success: function(html)
			{
				$(".world").html(html);
			} 
		});
	});
});