Error: Permission denied to access property 'toString'

[Vincent Benner]

Hello,

I've got a systematic JS error when I just drag the mouse over any input items.

For exemple, just connect the next page with Firebug :

http://www.keenthemes.com/preview/metronic/theme/templates/admin/form_controls.html

And just move the mouse over any input (Email Address / ...)

This ? bug / problem ? is very boring. So, is this just possible to check JS errors but adding
some exceptions ?

Thank you,

Vincent