title: Setting another month as default in jQuery UI datepicker before display
body: <p>In my situation, I have to set the month to last month as default.</p>
  
  <p>The default month for the datepicker is current month. But I want it to be last month or other month as default showing. How can I make it? </p>
  
  <p>Such as: "2010-09" as the default.</p>
  
  <p>Thank you very much!</p>