title: disabling user input php/html form
body: <p>I have a HTML form which when the user clicks submit, all information is sent to email via a php script using the POST method. What i want to do is disable all user input after the submit button is clicked or grey out all text box input fields. How can i go about doing this?</p>
  
  <p>the code for the submit button at the moment looks like this:</p>
  
  <pre><code>&lt;input type="submit" value=" Continue " style="width:200px;height:40px"&gt;
  </code></pre>