Like ultimate said the code is actually there in the globalstore.js

If you remember Rob, for sometime the ADD TO CART Alert was a popup window in the middle of screen that lastest roughly 3 seconds.
We got many complaints that the javascript was too slow for the popup. Although I never noticed speed decreases at all.
It was because we used the Javascript to open a window then document.write to it....
Maybe we can enhance the popup select in Site Wide Settings.
Javascript Alert Popup
Javascript Timed Window Popup
Disabled
How does this look so far?