changing out of edit mode in JTable?

In our Java applet, a user can open a JTable, but it starts in edit mode and so if someone tries to paste a table (from a web browser or Excel, for example), it pastes the table contents in that cell instead of as a table. If you however click another cell and click back, this changes it to mark mode and then the user can paste the table. But, no ordinary users would think of changing to mark mode to insert their table. So, what function do I need to use after we capture that someone is pasting a table, so that the table automatically changes to mark mode?

I have also posted this question on the Sun Java forum. Thanks in advance for your help!