Pop-up/under only if surfer clicks the back button?

[Azam.net]

We are paying an enormous amount for traffic from PPCSEs and, of course, a significant number of people don't buy anything from us but just click the back button to return to Overture or wherever.

Therefore I thought it might be a good idea to have a second 'bite of the cherry' by trying to lure them with some other service only if they click the back button. We don't want to present the pop-up/under to a surfer who chooses to go deeper into our site.

I was wondering if anybody knew how we could do this please? Thank you in advance for your help

P.S. I don't want this to become a thread discussing the 'morality' of such a script. The likes of Overture are raking in millions of dollars by deceptively making their results out to be bona fide search listings when they are nothing of the sort.

[Flawless_koder]

use the window.onunload event to trigger and event.
use the event details to find out if it's a history.back()... msdn.microsoft.com/library should be able to help you with the events property section.

Flawless

[Flawless_koder]

window.event.srcElement might do it - but i'm not sure, since the back button is, obviously, outside the domain of the dom.

the event.keyCode might supply you it - but i doubt it.

Flawless

[fillup07]

Isn't there a function for when you leave the site? I know I've seen it before.

[Flawless_koder]

that would be a method, and onunload, and onbeforeunload.

Flawless