How to change the state of the inputa to disabled and save the entered data?

Hello!

There are this kind of shape.

You must implement the changes and save the data in the input"E.
In the initial state inactive and there is only the "change" button, clicking on it you can enter data into the form and instead of "edit" button "save".

Individually, all the functions are found and implemented, but how to reconcile this, I can't understand( Just starting to learn javascript.

Pardon the arrogance, but do not have time to understand. Not knowing javascript, I can't even correct layout to create.

Thank you in advance for your help!