date picker. user selects a start date click radio button then give an end date
i have seen the widget for date picker that works great but i need another function.
Once the user selects that date (their start date from the date picker) underneath this there are 2 radio buttons one for 43 weeks and one for 52 weeks. I need that once the required "weeks" is selected a feild underneath is populated with a new date adding either 43 or 52 weeks to the start date.
php mysql used
i think this is done using javascript
if there is another way less complicated to do it i would live to know
thanks
