Here you can test the Popup Toolkit's Heuristic On Exit Fully Unblockable Popup.

Try entering a new URL in the address bar of your browser, or try moving your mouse towards the Back button of your browser, or try clicking the Close [X] button of your browser window...

The Intelligent Heuristic Algorithm will recognize and predict the visitors intention to leave your web page and will open the popup JUST BEFORE they have navigated away or closed the browser window.

The efficient visual effects that Popup Toolkit presents will ensure that the popup will catch the visitor's sight when they are about to leave.

Because the browser window is not closed in the moment the algorithm has made its prediction, any kind of popup can be opened. To ensure visual attraction of the visitor an Unblockable DHTML Popup is the best choice for the Heuristic On Exit Algorithm.

If you have any questions about this feature contact me (see bottom of page for contacts).