title: Javascript validations(Letters only and Numbers only)
body: <p>I have created web form with different text boxes with C# code at the back. So i want to use Java Script to validate some text boxes in order to have a good website.</p>
  
  <p>i am asking help from the following this.</p>
  
  <ol>
  <li><p>i want a text box to allow <strong>Only numbers</strong> and when u type letters it must highlight the text boxes into red color and shows error message (Please Enter Numbers only) .</p></li>
  <li><p>i want a text box to allow <strong>Letter numbers</strong> and when u type letters it must highlight the text boxes into red color and shows error message (Please Letters Numbers only) .</p></li>
  </ol>