function initialize() {
    var myLatlng = new google.maps.LatLng(49.430124, 15.22366);
    var myOptions = {
      zoom: 16,
      center: myLatlng,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }
  var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
  var image = 'img/ico.png';

  var marker = new google.maps.Marker({
      position: myLatlng,
      map: map,
      icon: image
  });  
  }