Reusable box built with css
this is a popup built with css
makeWeb2Box(someId (string), width (integer), top (integer), left (integer), [hasPointer (boolean), pointerPosition (integer)])
Turns the hidden div named 'someId' into a popup,
with or without a pointer (the default is no pointer).
If a pointer is specified, optionally set the left position
of the pointer image (the default is set in the CSS).