如何使用HTML5地理定位或Google API获取地址的经纬度？

if (navigator.geolocation) {

   /*  If current position is obtained then there is success otherwise there is failure.
   On failure, separate error message is shown  */    
   navigator.geolocation.getCurrentPosition(successFunc, errorFunc);
}  else {    
   alert(‘Geolocation is not enabled in your browser. Please use a latest browser to supports it.');
}