populating table data

hi

i have a table with mutliple rows and columns

which i got it from backend , not on ONLEADSELECT

there will be a popup window opened , and i want the

particular row data selected to be populates in the

pop-up window input fields and with the selection

of the row changes , same pop-up window get opened

and values inthe input field changes , how i achieve this

can any one help ? ptoblem is large amount of data in

tables .