I want to open up a pop up window and center it on the page AND have it leave the main window where it happens to be within the page. Right now I have the code doing all that EXCEPT leaving the main page alone. When the popup opens, the main window is scrolled back to the top of the page.

http://www.joeyshotdogs.com/info/mobile.php

Click on the event for August 28th.



Any idea how to make the main page stay stationary when the popup opens?