Ciao ragazzi, come faccio ad ingrandire l'infowindow che quando clicco sul marker compare?
Provate il codice, e vedrete che appena cliccate sul marker, l'infowindow che compare è piccolissima e si legge a malapena quello scritto. Come faccio a farla diventare tipo un BOX quadrato?

codice:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset=utf-8>
<meta name="viewport" content="width=620">
<title>HTML5 Demo: La tua posizione:</title>
<link rel="stylesheet" href="css/html5demos.css">
<script src="js/h5utils.js"></script></head>


<body>


    <header>
      <h1>La tua posizione:</h1>
    </header>
<meta name="viewport" content="width=620" />


<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
    <article>
      <p>Cercando la tua posizione...: <span id="status">Sto cercando...</span></p>
    </article>
<script>
function success(position) {
  var s = document.querySelector('#status');
  
  if (s.className == 'success') {
    // not sure why we're hitting this twice in FF, I think it's to do with a cached result coming back    
    return;
  }
  
  s.innerHTML = "Trovato!";
  s.className = 'success';
  
  var mapcanvas = document.createElement('div');
  mapcanvas.id = 'mapcanvas';
  mapcanvas.style.height = '300px';
  mapcanvas.style.width = '300px';
    
  document.querySelector('article').appendChild(mapcanvas);
  
  var latlng = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
  var myOptions = {
    zoom: 14,
    center: latlng,
    mapTypeControl: false,
    navigationControlOptions: {style: google.maps.NavigationControlStyle.SMALL},
    mapTypeId: google.maps.MapTypeId.ROADMAP
  };
  var map = new google.maps.Map(document.getElementById("mapcanvas"), myOptions);
  
  var marker = new google.maps.Marker({
      position: latlng, 
      map: map, 
      title:"Tu sei qui! (at least within a "+position.coords.accuracy+" meter radius)"
  });
var locations = [
        ['Ipercoop', 44.645199, 10.939838],
        ['nammt', 44.645199, 10.939845]
        ];
    var infowindow = new google.maps.InfoWindow();


    var marker, i;


    for (i = 0; i < locations.length; i++) {
        marker = new google.maps.Marker({
            position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map,
                title: 'Your geolocation',
                icon: 'http://labs.google.com/ridefinder/images/mm_20_green.png'
            });
            
        


        google.maps.event.addListener(marker, 'click', (function(marker, i) {
            return function() {
                infowindow.setContent(locations[i][0]);
                infowindow.open(map, marker);
            }
        })(marker, i));
    }
}


function error(msg) {
  var s = document.querySelector('#status');
  s.innerHTML = typeof msg == 'string' ? msg : "failed";
  s.className = 'fail';
  
  // console.log(arguments);
}


if (navigator.geolocation) {
  navigator.geolocation.getCurrentPosition(success, error);
} else {
  error('not supported');




}




try {
var pageTracker = _gat._getTracker("UA-1656750-18");
pageTracker._trackPageview();
} catch(err) {}</script>
</body>
</html>
Grazie mille, ( se non trovate i marker, guardate dalle parti di modena, che sono li)