Just need to know what is the HTML command to pop up a window when some leave your site.

Any help please.

That is THE most annoying thing you can ever do to your visitors. I can guarantee you that you will LOOSE traffic if you implement an onclose window opening.

I don't think anyone here will help you do something that low down and cheap.

I do not know its that annoying to most people.

Thanks for letting me know. I'll keep this off my list then.

I hate this kind of popups!