title: How do I validate that value entered into an input box is just numbers?
body: <p>I was wondering what the best and easiest way was to ensure that the value a user enters into an input box is numeric in a web page? either notify them they are not allowed to when they edit it or not allow them to enter in non numeric values to begin with.</p>
  
  <p>any ideas?</p>
  
  <p>thanks </p>