var nb_ile = 0;
function nb_laduj_o(id){

	for (i=0; i<nb_ile; i++){
		document.getElementById("nb_o_"+i).style.display = 'none';
		document.getElementById("nb_n_"+i).style.display = 'block';
		document.getElementById("nb_p_"+i).style.display = 'none';
	}
	document.getElementById("nb_n_"+id).style.display = 'none';
	document.getElementById("nb_o_"+id).style.display = 'block';
	document.getElementById("nb_p_"+id).style.display = 'block';
}

function program(id){
	ile = 8;
	for (i = 0; i < ile; i++){
		document.getElementById('pr_'+i).style.backgroundImage = '';
		document.getElementById('pr_'+i).style.color = '#eeeeee';
		document.getElementById('tabela_'+i).style.display = 'none';
	}

	document.getElementById('pr_'+id).style.backgroundImage = 'none';
	document.getElementById('pr_'+id).style.color = '#222222';
	document.getElementById('tabela_'+id).style.display = 'block';
}

function czcionka(px){
 var txt = document.getElementById('tresc');
 txt.style.fontSize = px + 'px';
 txt.style.lineHeight = (px+4) + 'px';
 txt = document.getElementById('zajawka');
 txt.style.fontSize = px + 'px';
 txt.style.lineHeight = (px+4) + 'px';
 txt = document.getElementById('tytul');
 txt.style.fontSize = (px+3) + 'px';
}

sz_pola = new Array(1,3,8,9,10,11,12,13,14,15,16,17,19);

function sercz(){
	return document.forms['sercz'];
}

function sz_all(){
	if (sercz().elements['kall'].checked){
		for (i = 0; i < sz_pola.length; i++)
			sercz().elements['k'+sz_pola[i]].checked = true;
	}
	else {
		for (i = 0; i < sz_pola.length; i++)
			sercz().elements['k'+sz_pola[i]].checked = false;
	}
}

function sz_klik(){
	bool = true;
	for (i = 0; i < sz_pola.length; i++){
		if (!sercz().elements['k'+sz_pola[i]].checked)
			bool = false;
	}
	
	if (bool){
		sercz().elements['kall'].checked = true;
	}
	else {
		sercz().elements['kall'].checked = false;
	}

}