The SmartInfo feature lets you present a pop-up window when users hold the mouse pointer over specific elements in a list view report, summary view report, or user form. SmartInfo uses Asynchronous Java and XML (AJAX) technology.
The contents of the pop-up display are determined by a section, presented in read-only mode.
By default, SmartInfo pop-up windows disappear after a few seconds, or when a user moves the mouse pointer to anywhere outside the window. To add a close box to the Smart Info pop-up window and have the pop-up window remain until explicitly closed, include the standard section @baseclass.SmartInfoClickable within your section. (Including this standard section adds a close box but does not otherwise alter the appearance of the section.)
You can't use the report paging feature in a list view display within SmartInfo pop-up section that has a close box. GAGNP 3/10/08
See also these PDN articles for examples and more about SmartInfo features: