I'm creating a paypal check-out form for a subscription service.
Paypal allows me to specify the "reacurring times" of the subscription with the "srt" option: https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_html_Appx_websitestandard_htmlvariables
I would like to create a drop-down list that allows the customer to select either an indefinite number of times or a specific number of times.
The select would probably look like this, however, I'm unsure how to specify an unlimited duration. Should I leave the value blank, or is there a way not to send the variable through at all?:
<select name="srt">
<option value="1"></option> <!-- One time -->
<option value="9"></option> <!-- Nine times -->
<option value=""></option> <!-- Indefinitely?? -->
</select>
I'm unsure how to handle this use case. Any help would be appreciated. Thanks!
Update:
It also looks like its impossible to specify srt="1" (the first option). When this option is selected, paypal rejects the link as invalid because a subscription service must be more than one time. From my understanding. Only wants to purchase one interval, then another option: "src" must be set to "0".
Can I do this with one html drop-down, or do I need to use javascript to respond to user input and then change hidden form values accordingly?
