title: set back the focus in GWT
body: <p>I have four text boxes and one ListBox placed in a FlexTable. I make a request to server to get the list of data to populate the ListBox. 
  When the response comes back, I populate the ListBox. This is stealing focus from the TextBox where I am giving input.</p>
  
  <p>What I want is after populating the ListBox, return the focus back to the exact location where it was before.</p>
  
  <p>How to do it in GWT or even in java script?</p>