Paypal form

<form class="donate" name="_xclick" target="_blank" action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="business" value="example@something.com">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="return" value="http://www.example.com/payment.php">
<input type="hidden" name="item_name" value="Donation">
<input type="text" onkeypress='return event.charCode >= 48 && event.charCode <= 57' maxlength="5" name="amount" placeholder="Donate what you want..."> </br>
<input type="submit" border="0" name="submit" value="Donate now">