title: Changing the recurring frequency of a PayPal Subscription Button when using drop down options
body: <p>Is there any way to change the recurring billing frequency with drop down options for subscription purchases? We need to be able to change our PayPal recurring options from weekly to once every 2 weeks. each of our drop down options have different prices. It's a single item, but with different weight options and each option is priced differently.</p>
  
  <p>There was a very good answer to modifying the time intervals for subscription billing with PayPal buttons on a single item purchase at: <a href="https://stackoverflow.com/questions/9606430/how-to-implement-a-quarterly-subscription-paypal-button">How to implement a quarterly subscription PayPal button</a></p>
  
  <p>But it didn't show a way to do that with a drop down option, subscription purchase.</p>