Google Map Center and InfoWindow

Question

I'm sorry if this has been answered somewhere else but when I add a listener to my maps it causes my markers to hide/ not load so can someone explain how to load infowindow and centre to the marker on click?

Heres my code so far:

<section id="wrapper">
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=true"></script>
<article>
</article>
<script>
function success(position) {
  var mapcanvas = document.createElement('div');
  mapcanvas.id = 'mapcontainer';
  mapcanvas.style.height = '600px';
  mapcanvas.style.width = '100%';
  document.querySelector('article').appendChild(mapcanvas);

  var coords = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
  var options = {
    zoom: 12,
    //center: coords,
    center: new google.maps.LatLng(51.416741,-0.543854),
    mapTypeControl: false,
    navigationControlOptions: {
        style: google.maps.NavigationControlStyle.SMALL
    },
    mapTypeId: google.maps.MapTypeId.ROADMAP
  };
  var map = new google.maps.Map(document.getElementById("mapcontainer"), options);

  // Geolocation
  var marker = new google.maps.Marker({
      position: coords,
      map: map,
      icon:'http://maps.google.com/mapfiles/ms/micons/blue-dot.png',
      title:"You are here!",
  });

  // Great Fosters
  var marker = new google.maps.Marker({
      position: new google.maps.LatLng(51.416741,-0.543854),
      map: map,
      icon:'http://maps.google.com/mapfiles/ms/icons/yellow-dot.png',
      title:"Great Fosters",
  });

  // St Matthews
  var marker = new google.maps.Marker({
      position: new google.maps.LatLng(51.432327,-0.459162),
      map: map,
      icon:'http://maps.google.com/mapfiles/ms/icons/orange-dot.png',
      title:"St Matthews",
  });

  // ----- STAINES HOTELS - START -----
  var marker = new google.maps.Marker({
      position: new google.maps.LatLng(51.435698,-0.514469),
      map: map,
      icon:'http://maps.google.com/mapfiles/ms/icons/green-dot.png',
      title:"Travel Lodge Staines",
  });

  var marker = new google.maps.Marker({
      position: new google.maps.LatLng(51.432156,-0.51617),
      map: map,
      icon:'http://maps.google.com/mapfiles/ms/icons/green-dot.png',
      title:"Thames Lodge Staines",
  });

  var marker = new google.maps.Marker({
      position: new google.maps.LatLng(51.43218,-0.516293),
      map: map,
      icon:'http://maps.google.com/mapfiles/ms/icons/green-dot.png',
      title:"The Boleyn Staines",
  });

  var marker = new google.maps.Marker({
      position: new google.maps.LatLng(51.432534,-0.516422),
      map: map,
      icon:'http://maps.google.com/mapfiles/ms/icons/green-dot.png',
      title:"The Swan Staines",
  });
  // ----- STAINES HOTELS - END -----

}
if (navigator.geolocation) {
  navigator.geolocation.getCurrentPosition(success);
} else {
  error('Geo Location is not supported');
}
</script>
</section>

EDIT:

I have now changed my code to include the arrays and it works quite well but now I want the marker to centre on the map when clicked and I want all markers to be in the window but fitBounds doesn't seem to be doing anything. It can be shown here http://www.everythingcreative.co.uk/marker

<section id="wrapper">
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=true"></script>
<article>
</article>
<script>

  var markers = [
    ['Great Fosters', 51.416741,-0.543854, 'http://maps.google.com/mapfiles/ms/icons/yellow-dot.png'],
    ['St Matthews', 51.432327,-0.459162, 'http://maps.google.com/mapfiles/ms/icons/orange-dot.png'],
    // Staines
    ['Travel Lodge Staines', 51.435698,-0.514469, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    ['Thames Lodge Staines', 51.432156,-0.51617, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    ['The Boleyn Staines', 51.43218,-0.516293, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    ['The Swan Staines', 51.432534,-0.516422, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    // Surrey
    ['The Runnymede Hotel', 51.43751,-0.537544, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    ['The Wheatsheaf Hotel', 51.409151,-0.592704, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    ['The Premier Inn Sunbury', 51.419322,-0.42248, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    ['The Crown Chertsey', 51.39181,-0.501861, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    // Heathrow
    ['Sofitel Heathrow', 51.473478,-0.49152, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    ['Marriott Heathrow', 51.481263,-0.438209, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'],
    ['Premier Inn Heathrow', 51.481615,-0.482288, 'http://maps.google.com/mapfiles/ms/icons/green-dot.png']
];

function success(position) {
  var mapcanvas = document.createElement('div');
  mapcanvas.id = 'mapcontainer';
  mapcanvas.style.height = '600px';
  mapcanvas.style.width = '100%';
  document.querySelector('article').appendChild(mapcanvas);

  var coords = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
  var options = {
    zoom: 12,
    //center: coords,
    center: new google.maps.LatLng(51.416741,-0.543854),
    mapTypeControl: false,
    navigationControlOptions: {
        style: google.maps.NavigationControlStyle.SMALL
    },
    mapTypeId: google.maps.MapTypeId.ROADMAP
  };
  var map = new google.maps.Map(document.getElementById("mapcontainer"), options);

  // Marker Control
  var infowindow = new google.maps.InfoWindow(), marker, i;
for (i = 0; i < markers.length; i++) {  
    marker = new google.maps.Marker({
        position: new google.maps.LatLng(markers[i][1], markers[i][2]),
        map: map,
        icon: markers[i][3]
    });
    google.maps.event.addListener(marker, 'click', (function(marker, i) {
        return function() {
            infowindow.setContent(markers[i][0]);
            infowindow.open(map, marker);
        }
    })(marker, i));
}

function AutoCenter() {
//  Create a new viewpoint bound
var bounds = new google.maps.LatLngBounds();
//  Go through each...
$.each(markers, function (index, marker) {
bounds.extend(marker.position);
});
//  Fit these bounds to the map
map.fitBounds(bounds);
}

  // Geolocation
  var GeoMarker = new google.maps.Marker({
      position: coords,
      map: map,
      icon:'http://maps.google.com/mapfiles/ms/micons/blue-dot.png',
      title:"You are here!",
  });


}
if (navigator.geolocation) {
  navigator.geolocation.getCurrentPosition(success);
} else {
  error('Geo Location is not supported');
}
</script>
</section>

Answer 1

To center the map on a marker when it is clicked, change your code to do that:

google.maps.event.addListener(marker, 'click', (function(marker, i) {
    return function() {
        // center on marker
        map.setCenter(marker.getPosition());
        // open the infowindow
        infowindow.setContent(markers[i][0]);
        infowindow.open(map, marker);
    }
})(marker, i));

for fitBounds to work, you have to pass the .extend method a google.maps.LatLng object. The simplest way to do that given your existing code would be to put it in your "marker control" loop:

var bounds = new google.maps.LatLngBounds();
for (i = 0; i < markers.length; i++) {  
    marker = new google.maps.Marker({
        position: new google.maps.LatLng(markers[i][1], markers[i][2]),
        map: map,
        icon: markers[i][3]
    });
    bounds.extend(marker.getPosition());
    google.maps.event.addListener(marker, 'click', (function(marker, i) {
        return function() {
            infowindow.setContent(markers[i][0]);
            infowindow.open(map, marker);
        }
    })(marker, i));
}
map.fitBounds(bounds);