Another piece of dynamicism that can make a web page less cluttered is to place expositional information that may not be relevant enough for inclusion in the document body itself in boxes that popup when the mouse hovers over a visible item. For example, a page that touts the strong-points of the University may mention our strong athletics presence. When the user's mouse hovers over "athletics presence" a popup box could be displayed which states just what athletics programs the University offers.

The UDPopupBox module is a mechanism for easily adding hover-based popup boxes to pages. The boxes can optionally have a title bar on them to indicate the relevance of the information, for example. And it's all CSS-based, so the end-user need not have Javascript enabled for them to work.