Pop-up system:
We have many sites (more than 40) and we need to realize an integrated layer/pop up system.
If the user's system has a system for blocking the pop-ups (we think it is possible with a cookie), a layer should appear on the page.
If the user can see the pop-up: realization of a system of pop-up for promoting our downloads or the possibility to subscribe to our newsletter.
DETAILS
The system should consist of pop under, the possibility to activate different kind of pop ups (welcome pop-up, farewell pop-up, timed pop-up) as well as a system for recognizing the language of the browser and choosing the correct pop-up. As soon as someone will do the download, the number of pop-up/layer should reduce itself (our download system releases a cookie). The same if somebody subscribe to the newsletter (also here we prefer a javascript coding for sending email).
The code should be readable and with clear instructions in order to allow a person with just knowledge of html the possibility to activate or deactivate pop-ups without trouble.
Creative ideas for getting more subscribers through this system are welcome (floating layers, moving pop-ups or others ideas ...) (please post them to the PMB).
The code should be compatible with most browser.