function isUserLogged() {
	try {
				
		var location = window.location.href;
		var forumIndex = location.indexOf("forum");
		var url = location.substr(0, forumIndex);
		
		$.ajax({
				url: url + 'checkLoggedInExt.action?activeElement=forum',
				type:'GET',
				success: function(response){
					showHeader(response);
				},
				error: function(){ 
					$('#header-wrapper').css("visibility", "visible");

				}
		});
	} catch (e) {
		$('#header-wrapper').css("visibility", "visible");
		console.error(e);
	}
}

function showHeader(response) {
	if (response.length != 0 && response.indexOf("<html") == -1) {
		// insert main page header from response
		$('#header-wrapper').empty();
		$('#header-wrapper').append(response);
		$('.linknodisplay').hide();
		var subLev = $('#dy_sublev').text();
		if (subLev == 0) {
			showAdBanner();
		}
	} else { 
		$('#banner').show(); 
		showAdBanner();
	}
	
	$('#header-wrapper').css("visibility", "visible");

}

function showAdBanner() {
	$('#leaderboard-forum').show();
}


function changeLanguage(select) {
	var language = select.options[select.options.selectedIndex].value;
	var url = forumUrls[language];
	
	// change flag of new selection
	$(select).attr("class", language);
	
	window.location.href = url;		
}

var forumUrls = new Object();
forumUrls.de = 'http://www.verwandt.de/forum/';
forumUrls.pl = 'http://www.moikrewni.pl/forum/';
forumUrls.it = 'http://www.parentistretti.it/forum/';
forumUrls.fr = 'http://www.familleunie.fr/forum/';
forumUrls.en = 'http://www.itsourtree.com/forum/';
forumUrls.es = 'http://www.miparentela.com/forum/';
forumUrls.pt = 'http://www.meusparentes.com.pt/forum/';
forumUrls.pt_BR = 'http://www.meusparentes.com.br/forum/';