title: Remove submit.x and submit.y but retain other values in URL
body: <p>With my PHP form, I want to pass one value to the URL, but remove submit.x and submit.y. Here's my form:</p>
  
  <pre><code>&lt;form action="booking.php" method="get"&gt;    
  &lt;input type="image" value="access" class="rollbtn" src="../images/book-btn.gif" alt="Book" name="submit" /&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>I want the URL to display booking.php?submit=access - but omit the x and y coordinates that result from the type="image". If I add <code>onsubmit="this.submit();return false;"</code> it strips everything. Is there a way to do this, or should I just use type="submit" and style the button?</p>