Resize map for print.

printmap.js

var map;

var printHandler = function(e) {
  // Grab center before resize.
  var center = map.getCenter();
  // Tell the map it needs to resize.
  window.google.maps.event.trigger(map, 'resize');
  // Set the center back to what it was pre-resize.
  map.setCenter(center);
};

window.initMap = funciton() {
  ...
  map = new google.maps.Map(mapWrap, {
    zoom: parseInt(location['zoom'], 10),
    center: myLatLng
  });
  
  // Everything but webkits
  if (window.onbeforeprint !== undefined) {
    $(window).bind('onbeforeprint', printHandler);
  }
  // Webkits
  else if (window.matchMedia) {
    window.matchMedia('print').addListener(printHandler);
  }
}