This auto centering pop up window JavaScript will open a window (DHTML) and keep that pop up window centered on the visitors page. If the visitor scrolls up or down looking through the page content the window will stay centered. Once closed the window will not ReOpen. If you want the window to reopen you can use the refresh/reload only once script to refresh the page after on window close.
Copy this auto centering pop up window Javascript code into an HTML doc. Make sure you append the correct extension (.html) to your document.
