Elenco completo variabili per Pulsante PayPal
From https://www.paypal.com/cgi-bin/webscr?cmd=p/pdn/tech-overview-singleitem-outside
<!-- Begin PayPal Logo -->
<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="business" value="dave@davesgarage.com">
<input type="hidden" name="item_name" value="dave's oil change service">
<input type="hidden" name="item_number" value="1111">
<input type="hidden" name="amount" value="29.99">
<input type="hidden" name="image_url" value="http://www.davesgarage.com/logo.gif">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="undefined_quantity" value="1">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="return" value="http://www.davesgarage.com/success.html">
<input type="hidden" name="cancel_return" value="http://www.davesgarage.com/cancel.html">
<input type="image" src="http://images.paypal.com/images/x-click-but01.gif" border="0" name="submit" alt="Make payments with PayPal - it's fast, free and secure!">
</form> <!-- End PayPal Logo -->