Dynamically add a group of fields using jQuery

Its not a so tough thing, tough. Just wanted to keep a record and add a tip :) Following is the code I am using:

Note:
I was facing a problem, when the groups of fields grows  more then the view area for each click to create the window jumps to the top of the page; To resolve, to remain where I was creating the new fields I just added one line return false as the last line of the click even.
Instead of remaining the same place if you want to scroll to some where else you can use the following jQuery plugin:
scrollTo