Interact between 2 webpages?

Question

I have a PM-System.

Now I will have a search:

• When the user hit the search button, a second webpage should open
• In the second page is a user search
• when the user has searched and marked a user, he should click a button
• when he clicks the button, the window should close and the username should be entered automaticly in the first webpage

How to do that? (ASP.Net, C#, 2.0)

Answer 1

You can open it in a modal dialog, i think you can use

document.parentWindow

to access the parent window.

Answer 2

Client-side: use jQuery and pop up a form (actually a DIV). See jQuery and jQuery UI.