title: PayPal Donation Button: Adding 'Amount' and 'Currency'
body: <p>I have the "normal" PayPal donation button. I want to add two multiple choice fields: <strong>Amount</strong> and <strong>Currency</strong> as the image below. So the user dont need to put the amount of the PayPal website:</p>
  
  <p><img src="https://i.stack.imgur.com/zfPKf.png" alt="enter image description here"></p>
  
  <p>This is the 'normal paypal donation button code':</p>
  
  <pre><code>&lt;form action="https://www.paypal.com/cgi-bin/webscr" method="post"&gt;
  &lt;input type="hidden" name="cmd" value="_s-xclick"&gt;
  &lt;input type="hidden" name="hosted_button_id" value="XXXXXXXXXXXXX"&gt;
  &lt;input type="image" src="https://www.paypalobjects.com/es_ES/ES/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal."&gt;
  &lt;img alt="" border="0" src="https://www.paypalobjects.com/es_ES/i/scr/pixel.gif" width="1" height="1"&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>I have read on <a href="https://stackoverflow.com/questions/8548856/paypal-custom-amount-for-donate-now-button">this post</a> that you have to add the following lines, but I dont know where or how to do it. It doesnt work.</p>
  
  <pre><code>&lt;label for="amount"&gt;Select the amount you wish to donate:&lt;/label&gt; 
  &lt;select name="amount" id="amount"&gt;
  &lt;option value="5.00"&gt;$5.00&lt;/option&gt;
  &lt;option value="25.00"&gt;$25.00&lt;/option&gt;
  &lt;option value="50.00"&gt;$50.00&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>Can anyone tell me how to do it correctly? Thanks!</p>