onRowExit
The instruction(s) to be executed are placed within quotes. This event handler will execute when the data in a row of cells is about to be changed.

The following example will display text of your choosing in a message box when the data in a row of cells is about to be changed:
onRowExit="msgWindow.document.write('-- Insert text message here --')"
This Event Handler is used with the following:

APPLET
AREA
BODY
BUTTON
DIV
IMG
MARQUEE
OBJECT
SELECT
TABLE
TD
TEXTAREA
TH