This is a project for offline editing. I have two pages (html ones) on page Post.html I have a few editable text boxes. I need to update Show.html page with content typed in editable text boxes from Post.html. Is it possible? The idea is to allow a customer to edit/type some names from a page and update the content from another.

From what I've understand it's a "communication between tabs or windows" via HTTP protocol but I have no idea how to achieve this.

Click image for larger version.  Name: type.jpg  Views: 440  Size: 9.7 KB  ID: 6314

I've made an animation, maybe it helps.

The project.
I have no experience with javascript or any other programming language fort that matter but I do HTML/CSS templates for webcam performers (camgirls) . I want to help my collaborator edit some content without the need to edit the content via source markup.

It sounds like a backend editor but with less complexity.
As shown in the animated graphic above, i need to allow the user to edit some names from Page A and update the editing on Page B.

Thank you