function set_language(lang)
{
	if (lang == "pl")
	{
		window.lang = "pl";
	}
	else
	{
		window.lang = "en";
	}
	//set_nun('nun_the', 'news');
	set_nun (null, null);
}

function test()
{
	var element = document.getElementById('nun_the');
	if (element.clicked == 1)
		nun2 ('nun_the', 2);
	element = document.getElementById('nun_band');
	if (element.clicked == 1)
		nun2 ('nun_band', 2);
	element = document.getElementById('nun_pics');
	if (element.clicked == 1)
		nun2 ('nun_pics', 2);
	element = document.getElementById('nun_tour');
	if (element.clicked == 1)
		nun2 ('nun_tour', 2);
}

function clear_nuns()
{
	clear_nun('nun_the');
	clear_nun('nun_band');
	clear_nun('nun_pics');
	clear_nun('nun_tour');
}

function clear_nun(nun_id)
{
	nun2 (nun_id, 1);
	document.getElementById(nun_id).clicked = 0;
	return true;
}

function set_nun(nun_id, page_url)
{
	if (page_url !== null)
	{
		//alert ('ajax -> ' + page_url+".php");
		$.ajax({
        	url: page_url+".php?lang="+window.lang,
	        context: document.body,
	        success: function(data) {
	        	$("#ajax_box").html(data);
				//alert ('sukces: '+data);
	    	}
    	});
	} //else alert ('not_ajax');
	clear_nuns();
	nun2 (nun_id, 2);
	document.getElementById(nun_id).clicked = 1;
	return true;
}

function nun (el_id)
{
	var element = document.getElementById(el_id);
	if (element.clicked == 1)
		return;

	var slash = element.src.lastIndexOf("/")+1;
	var dot = element.src.lastIndexOf(".");
	var name = element.src.substring(slash, dot);
	var num = name.substring (name.length-1);
	element.src=element.src.substring(0,dot-1)+((num=="1")?"2.png":"1.png");
}

function nun2 (nun_id, numx)
{
	var element = document.getElementById(nun_id);
	var slash = element.src.lastIndexOf("/")+1;
	var dot = element.src.lastIndexOf(".");
	var name = element.src.substring(slash, dot);
	var num = name.substring (name.length-1);
	//alert (element.src);
	element.src=element.src.substring(0,dot-1)+numx+".png";
	//alert (element.src.substring(0,dot-1)+num);
}


function change_nun_image (par)
{
	var element = par;
	var slash = element.src.lastIndexOf("/")+1;
	var dot = element.src.lastIndexOf('.');
	var name = element.src.substring(slash, dot);
	var num = name.substring(name.length-1);
	if (num=="1")
	{
		element.src = element.src.substring(0, dot-1)+"2.png";
	}
	else
	{
		element.src = element.src.substring(0, dot-1)+"1.png";
	}
	//alert(element.src);
}