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Hi

how i can access fields values by java script ?

i tried to get language field value in java script variable, but i failed.

and i tried to know where is the function that retrieve the current language, and i failed too.

so please anyone can help me

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Confirm, this approach posted by Handelux worked like a charm, tested on v16
var lang = ('; '+document.cookie).split(`; frontend_lang=`).pop().split(';')[0];

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User language is stored in a cookie frontend_lang so you can access it with pure javascript:

var lang = ('; '+document.cookie).split(`; frontend_lang=`).pop().split(';')[0];
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The language value should be instance.session.user_context.lang.

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please i am new in openerp. so where i can find "instance.session.user_context.lang" and how to put language in alert message

You need to read the OpenERP web module development guide. instance is sent by OpenERP to web modules during session startup.

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