Ajax Implementation question

[MikeF98765]

So i'm trying to make an AJAX application, and here is what i need to do. I want to have a javascript bookmarklet that basically gathers teh title, address, and selected text of the page you're on. This part i've figured out, but what i need to know is what is the best way to send this information on to my application?

Lets say i am using layout.php to have all my information laid out. I want to click on my bookmarklet while I'm at another page and have the information above show up on my layout.php. What is the most seamless way of doing this?

 

[MikeF98765]

More straightforward question:

How do i get a remote javascript call to trigger an action (any action) on my PHP page which is already open? All i can think of is some type of constant polling but that's not a very good practice...

 

[MikeF98765]

i understand how ajax works, but these method still require an action from the page to initiate. What i want to happen is page 1 is just sitting there, i hit a button on page 2, and something happens on page 1.