Rhys - 11:17 am on Apr 18, 2002 (gmt 0)

Hi
If you put the floor plan as a background image, then put the state of each possible light overlaid on that in appropriate table cells with the content of the cell being a green or red dot GIF, according to your data input. The dot GIFs are cell sized or else positioned in the cell and with transparent backgrounds. You can make the floor plan a table background, or slide it under the table with a Z positioned layer.