how to highlight cell

Hi all,

I have a table with 12 cols and 10 rows. When a user clicks on a table cell;
the page is refreshed and displays some data below the table dependant on
whichever cell was selected.
I would like to make it so that whichever cell was clicked; the background
color is changed - so that when the user sees the data, (s)he can tell which
cell it relates to.

Does anyone know of a clever way to do this ?
I'm afraid my creativity is running a bit dry on this one as the only
working way i could come up with so far is to have an if statement before
each table cell is created, which is long winded.

kind regards

T