I have the “normal” PayPal donation button. I want to add two multiple choice fields: Amount and Currency as the image below. So the user dont need to put the amount of the PayPal website:

This is the ‘normal paypal donation button code’:
<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="XXXXXXXXXXXXX">
<input type="image" src="https://www.paypalobjects.com/es_ES/ES/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal.">
<img alt="" border="0" src="https://www.paypalobjects.com/es_ES/i/scr/pixel.gif" width="1" height="1">
</form>
I have read on this post that you have to add the following lines, but I dont know where or how to do it. It doesnt work.
<label for="amount">Select the amount you wish to donate:</label>
<select name="amount" id="amount">
<option value="5.00">$5.00</option>
<option value="25.00">$25.00</option>
<option value="50.00">$50.00</option>
</select>
Can anyone tell me how to do it correctly? Thanks!
Hosted PayPal buttons allow you to send option variables, but when not for a donation button, be sure that the option values (for drop downs / text boxes) match exactly what is saved in your PayPal account. i.e. do not edit drop down boxes PayPal creates for you.
As for adding drop down boxes / text boxes to a hosted button, perfectly possible, as long as they do not alter the payment amount. So, for creating a hosted donation button that allows you to edit the amount, I advise the following:
You now have a donation button