title: Inside a gridview (label turn to textbox on click) One at a time
body: <p>Following this Question/Answer regarding changing label to textbox inside a gridview gives me a answer on my project
  <a href="https://stackoverflow.com/questions/9170221/changing-label-to-textbox-on-javascript">Changing label to textbox on javascript</a>
  but there is a slight modification cause on my project I want that only one click at a time be used. Cause on what the question ask it only show how to change label to gridview without on change one at a time.</p>
  
  <p>Ive tried googling it but I cant find the right answer. 
  Any Ideas? My codes is same as the question above.
  Thanks</p>