title: I need a getScale(map) method to get the scale value in Google maps api v3?
body: <p>I am using Google maps api v3.</p>
  
  <p>It is currently possible to display a scale control, but there is no way to access the scale value from code.</p>
  
  <p>I'd like a getScale(map) method to get the scale value,it should return meters/pixel values for the current zoom level.</p>
  
  <p>Does any one know how to finish this method?</p>
  
  <p>Thanks in advance....</p>