(function() {
  window.onload = function() {

    // Creating an object literal containing the properties 
    // we want to pass to the map  
    var options = {
      zoom: 15,
      center: new google.maps.LatLng(50.835274, 12.93466),
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };

    // Creating the map  
    var map = new google.maps.Map(document.getElementById('map'), options);
    
    // Adding a marker to the map
    var marker = new google.maps.Marker({
        position: new google.maps.LatLng(50.835274, 12.93466),
      map: map,
      title: 'Klicken Sie mich'
    });
    
    // Creating an InfoWindow with the content text: "Hello World"
    var infowindow = new google.maps.InfoWindow({
      content: 'Podologie Steffi Nagy'
    });
    
    // Adding a click event to the marker
    google.maps.event.addListener(marker, 'click', function() {
      // Calling the open method of the infoWindow
      infowindow.open(map, marker);
    });

  };
})();