We have a shopcart.It has a subtotals in view cart.(each subtal is generated by the use of for loop of active recordset object.Each sub total below it has shipping charge displayed.Now the user clicks a hyperlink below one of the shipping charges with the intention of replacing the charge with new charge for a different service and goes to a page which displays a number of radio values.When the user selects a particular value,what should we do to make the value appear in place of earlier shipping value.