[jQuery] [validate] Page disappear when validation completes !

[jQuery] [validate] Page disappear when validation completes !


Hello,
the strangest thing ever happens to me.
I'm new with JQuery and more especially withthe validation plugin.
I've created this page: http://dev.sonycenter.be/fr/ and implemented
the validation plugin for the newsletter form
If you look at the bottom right corner, you can try to enter a data
into the input field.... but as soon as you type one character after
the "." (that follows the domain) the whole page disappear...
I can't understand what's happening...
thanks for your help.
Antoine