$(document).ready(function(){
    
    $(".menu_home").click(function () {
      $("#home").css("display","block");
	  $("#info").css("display","none");
	  $("#galeria").css("display","none");
	  $("#zapis").css("display","none");
    }); 
	$(".menu_oszkole").click(function () {
      $("#home").css("display","none");
	  $("#info").css("display","none");
	  $("#galeria").css("display","none");
	  $("#zapis").css("display","none");
    });
	$(".menu_info").click(function () {
      $("#home").css("display","none");
	  $("#info").css("display","block");
	  $("#galeria").css("display","none");
	  $("#zapis").css("display","none");
    });
	$(".menu_galeria").click(function () {
      $("#home").css("display","none");
	  $("#info").css("display","none");
	  $("#galeria").css("display","block");
	  $("#zapis").css("display","none");
    });
	$(".menu_zapisz,#zapis").click(function () {
      $("#home").css("display","none");
	  $("#info").css("display","none");
	  $("#galeria").css("display","none");
	  $("#zapis").css("display","block");
    });
	$(".menu_kontakt").click(function () {
      $("#home").css("display","none");
	  $("#info").css("display","none");
	  $("#galeria").css("display","none");
	  $("#zapis").css("display","none");
    });
	$("#sitemap").click(function () {
		$("#prt").css("display","block");
	});


  });








<script type="text/javascript">
<!--
  $(document).ready(function(){
      $("#home").css("display","none");
	  $("#info").css("display","none");
	  $("#galeria").css("display","none");
	  $("#zapis").css("display","block");
  });
//-->
</script>