window.__div_backup = new Array()
function ajax(url, data, options)
{
	if (typeof(options.div)!='object' || !(options.div instanceof Array) && options.div != '') options.div = new Array(options.div);
	if (options.div != '')
	for(i = 0; i < options.div.length; i++)
	{
		marg_l = ($(options.div[i]).width() - 32) / 2;
		marg_t = ($(options.div[i]).height() - 32) / 2;
		window.__div_backup[i] = new Array(options.div[i], $(options.div[i]).html());
		$(options.div[i]).html("<img style='margin: "+marg_t+"px "+marg_l+"px "+marg_t+"px "+marg_l+"px' src='http://internetstudio.pl/img/loading.gif' />");
	}

	window.__url = url;
	window.__data = data;
	window.__options = options;

	document.body.style.cursor = 'wait';
	$.ajax(
	{
		type: "POST",
		url: url,
		data: data,
		async: true,
		dataType: "json",
		global: false,
		success: function(values)
		{
			openMessages(values, options);
			document.body.style.cursor = 'default';			
		},
		error: function()
		{
			restoreDivs();
			document.body.style.cursor = 'default';
		}
	});

	return false;
}

function openMessages(values, options)
{
	if(values)
	{
		$.each(values, function(key, value)
		{
			if (value['message'] == 'go_to_location')
			{
				window.location = value['location'];
			} else
			if (value['message'] == 'restore_divs')
			{
				restoreDivs();
			} else // =html
			{
				$(value['div']).html(value['html']);
				//$(value['div']).css("opacity", 1.0);
			}
			if (options.success) options.success(value);
		});
	} else if (options.success) options.success(false);
	
	return true;
}

function restoreDivs()
{
	$.each(window.__div_backup, function(key, value) {$(value[0]).html(value[1])});
	window.__div_backup = new Array();
}

$(document).ready(function() {
	$(window).hashchange( function(){		
		ajax(location.hash.replace('#', ''), '', '#content');
	})
	if (location.hash.replace('#', '')) ajax(location.hash.replace('#', ''), '', '#content');
});