title: HTML Textbox which accepts phonenumbers and has a displays in us phone number format
body: <p>I found a lot of help in restricting a textbox to accept only numbers but I wanted to check if it is possible to display a text box in USA phone number format.</p>
  <p>Example:</p>
  <p>( _ _ _ ) _ _ _  - _ _ _ _</p>
  <p>Please help.</p>