title: Alter other fields based on one field input with PHP?
body: <p>I have a form that has two options: Return and Exchange.
  If Return is selected, the lower fields need to become "<strong><em>n/a</em></strong>" as values. If Exchange is selected the values input need to remain.</p>
  
  <p>This doesn't seem to do the trick:</p>
  
  <pre><code>  $exchname = addslashes($_POST["exchname"]);
    $exchsize = addslashes($_POST["exchsize"]);
  
    if($returntype = "return"){
       $exchname = "n/a";
       $exchsize = "n/a";
    }
  </code></pre>
  
  <p>Any pointers on what's going wrong will be greatly appreciated.</p>