var container = 'hc_content';

function content(content_url)
{
	if (content_url == '') 
	{
		hideContent();
		return;
	}
	
	showContent();
	advAjaxDisplay(content_url);
}

function advAjaxDisplay(page)
{
	advAJAX.get({
		url : '/' + page + '/',
		onSuccess : function(obj) {
			eval('var result = (' + obj.responseText + ');');
			setData(result);
		},
		onError : function(obj) { alert(obj.responseText); },
		onInitialization : function(obj) { setData('<img src="/themes/hc/images/loading.gif" alt="ładuję dane">'); }
	});
}

function setData(data)
{
	$$(container).innerHTML = data;
}

function showContent()
{
	$$('hc_content').style.display = 'block';
}
function hideContent()
{
	$$('hc_content').style.display = 'none';
}

function isDefined(vars) { return (typeof(vars) != "undefined");}