Client Side Scripting

Question

I have a html table whose values had to filled from server side code. it consist of select control in one of the columns of the table.

Using one webmethod and ajax json , i filled the table contents with data . Using second ajax method i am able to get the dropdown list data but unable to bind it.

Actually , i am able bind only first select control with data but not other select controls .How to fill or bind select control(consist of DeptID,DeptName) in each row of the table with data coming from server by asp.net webmethod. The whole scripting has to be on client side.