function pokaz_opis() {
		document.getElementById("miasto_opis").style.display = 'block';
		document.getElementById("miasto_zajawka").style.display = 'none';		
		window.location.hash="opis";
	}
	
	function schowaj_opis() {
		document.getElementById("miasto_opis").style.display = 'none';
		document.getElementById("miasto_zajawka").style.display = 'block';		
	}
	
    function widocznosc(id) {
       var e = document.getElementById(id);
       if(e.style.display == 'block')
          e.style.display = 'none';
       else
          e.style.display = 'block';
    }