My Joomla Multisite Master Site is installed with three Languages: Languages (en_GB), Traditional Chinese (zh_TW) and Simplified Chinese (zh_CN).

Under this configuration, how can I make a slave site to display one Language Only?

My Problem is that: Although my slave site's default language is set to Traditional Chinese (zh_Tw), sometimes under certain conditions (says, a user's brower's default language is set to English), the slave site is switched to English automatically. But my client wants it to be in Chinese Only.

This behavior is quite annoying.

How can I disable the unwanted languages in a slave site?

Many thanks.

Seth

Jms Multisites does not manage the languages.
So if you have a switch from one language to another language depending on the browser, this may perhaps happen with specific extension like JomFish.
We already saw that JoomFish use the browser language to display the correct default webpage

At my knowledge, the language can be selected when a user login into a website.
So if you have a login, this is probably the language code associated to the user.
If you are using a specific login module perhaps it detects the language that is provided to joomla