well, there is a lot of code there... and I don't have all of your libs - so i can't play with it for you.

However, a problem I have come across in IE is that it doesn't clone some data correctly, even if you are just moving nodes around. If your lucky your code will work in Firefox as well.

But I think your problem is in your onClick code... you are defining the name of the object... you should update it ie "date"+rowCount+"x" or something... also, you can use the 'this' keyword to reference the object generating the onClick event.. which may eliminate some need of element naming.

Cheers