title: Jquery add month to selected date
body: <p>We have 1 Month, 3 Month, 6 Month,  9 Months, 1 Year Membership in dropdown list</p>
  
  <p>What we where trying to do is if user select 25/06/2012 for start of membership of 9 months, we want to show him when his membership will expire like say 25/03/2013. we tried many things but it give some wrong date.</p>
  
  <p>we are using jquery-ui for selection of start membership date</p>
  
  <p>Regards
  Arshad</p>