<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="F6MLFVP2KUL5A">
<input type=hidden name=quantity value="<%=rCount%>">
<input type="hidden" name="on0" value="ID">
<input type=hidden name="os0" value="<%=r_id%>">
<input type="hidden" name="return" value="http://www.statelineretreat.org/thanks.asp?reg=<%=r_id%>">
<input type="hidden" name="cancel_return" value="http://www.statelineretreat.org/cart.asp">
<input type="image" src="https://www.paypal.com/en_US/i/btn/btn_paynowCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypalobjects.com/WEBSCR-640-20110306-1/en_US/i/scr/pixel.gif" width="1" height="1">
</form>
I want to pass r_id from my site to paypal after they hit "buy now" and then have it returned to me after a successful trans action.
