title: Forcing a text field to be a valid email?
body: <p>I was wondering if it were possible to force an input field to be an valid email?</p>
  
  <p><code>&lt;input type="text" name="emailaddress" &gt;</code></p>
  
  <p>I would like it to use <strong>Javascript/JQuery rather than PHP</strong> if possible!</p>
  
  <p>Thanks for the help.</p>