removeattribute at runtime in asp.net using c#

Question

hello frnds,

m using jquery in my asp.net application.

my page has one grid and one table

the grid has 1 textbox and table has 2 textbox..

on page load table is not visible

on using document.ready function m using like

$(function () {

            $('input:text').attr('readonly', true);

         });

by using this the textbox of grid is also being readonly i want tht textbox readonly when the table is visible...

suggest me ...