function goTab(i){
	$('nauczyciel').className=i;
	$('uczen').className=i;
	$('rodzic').className=i;
	tab_content_show(i);
}

function tab_content_show(i){
	var tablica;
	
	tablica = ["jeden","dwa","trzy"];
	$('z_content_'+i).style.display="block";
	
	//usuwamy z tablic element
	rest = tablica.without(i);
	
	for (var index = 0, len = rest.length; index < len; ++index) {
		
		$('z_content_'+rest[index]).style.display="none";	
		}
	
	
}
function finder_tab(i){
	$('sklep').className=i;
	$('portal').className=i;
	tablica = ["sklep","portal"];
	if (i=='jeden') i='sklep'
	else if (i='dwa') i='portal'
	$('wyszukiwarka_content_'+i).style.display="block";
	rest = tablica.without(i);
	for (var index = 0, len = rest.length; index < len; ++index) {
		
		$('wyszukiwarka_content_'+rest[index]).style.display="none";	
		}
}