how to add one contact form for each langage ?

Hello

When my view gives no result I need to redirect to the contact form

I did

drupal_goto('contact');

I need to have one contact for each langage because the recipient of the mail is not the same when the langage changes.

So I created 4 categories on the contact form (I have 4 langages) but how to load the right form ? how to specify each category of the form belong to each langage of the website.
And on my contact form, I need to hide the category select.

Can you help me please ?

Thank You.

Sorry for my English ^^