In one window by clicking a button(button name select) a pop up window, in that pop up window , I have only lot of check boxes.
My query is,
I want to show what are the values I selected in the pop up window that should display in the previous window near to the select button with sepearate comma,

as long as you dont violate any cross domain rules you can access your parent page through js

parent."somejsfunc"(selected checkbox values)