Something wrong between jquery and igoogle gadget

Something wrong between jquery and igoogle gadget


Hello,
I'm trying to use google gadgets into an interface like igoogle built
with jquery ui.
Each time a box with igoogle gadget is moved, webpage is reload and
display only the gadget.
Ex : http://bnorrin.dlcube.com/nettuts/
There is no problem on ie6, ie8 and opera. Only on Firefox.
How can I detect which event do that ? Any idea why the widget reload
itself afer the move ?
Thanks a lot !
Benoit