Paypal

<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="S2Q7NWGUQUS32">
<table>
<tr><td><input type="hidden" name="on0" value="Dues options">Dues options</td></tr><tr><td><select name="os0">
    <option value="Annual Dues (Emember)">Annual Dues (Emember) $20.00 USD</option>
    <option value="Annual Dues w/postal mail option">Annual Dues w/postal mail option $30.00 USD</option>
    <option value="Postal mail surcharge for prepaid/honorary members">Postal mail surcharge for prepaid/honorary members $10.00 USD</option>
</select> </td></tr>
</table>
<input type="hidden" name="currency_code" value="USD">
<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_buynowCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
</form>