$(document).ready(function(){

	$('tr.selected').hide(); 

	$("#classes .showmap").click(function(){
		$(this).parent().parent().next().slideToggle();
		return false;
	});
	 
});

var city;
var district;

function changeCity() {
  if(city.value == 'Budapest') {
    district.style.display = 'inline';
  } else {
    district.style.display = 'none';
  }
}

function setFormEvents() {
  city.onchange = changeCity;
  district.style.display = 'none';
}