[FIX] Problem in dates.js.
[FIX] Problem in dates.js.

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extra : convert_revision : nicolas.vanhoren%40openerp.com-20110512084010-08scew5wsodjm4bg


akretion/openerp-web,havt/openerp-web,akretion/openerp-web,havt/openerp-web,havt/openerp-web,havt/openerp-web,akretion/openerp-web,havt/openerp-web