Google Maps by the Chinese firewall blocked, so do not directly refer to http://maps.googleapis.com/maps/api/js?sensor=false&language=en under the domain name of the Google Map API, but instead to HTTP ://maps.google.cn/maps/api/js?sensor=false This address, google.cn in the domestic domain name is not blocked, you can use.
Note: Although google.cn can be used, but will output some JS reference to google.com resources, resulting in map rendering will be delayed, so do not put Google Map API to your content in front of, such as head tag inside, but put the content or HTML end tag, to prevent your page content has been blank, browse Device cannot display content.
Also do not use window.onload events to draw, or Google Maps display is not timely, because to load google.com resources, and google.com resources are intercepted, will cause to know the request timeout (about 2 minutes) will be drawn out of Google Maps.
Use Google's callback parameters to pass a callback function name, which is tested to show Google Maps faster than using Window.onload events.
Sample code:
<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">