Table rows are modified with textbox using javascript

Not clear what the problem is. What have you tried so far?
And you did not explain what exactly you want to achieve. Clicking on a button says nothing about the content of a table. All you need to do is to get some data from some input control and update some properties of some elements of your DOM tree. Native JavaScript DOM API provides comprehensive set of functions for this purpose. Read documentation and use them.
—SA