Wil je het echt zelf maken? Want er zullen vast wel plug-ins zijn om dat te realiseren.
Al die plugins zijn bijna betaald van wordpress 
, had ik ook al even voor gekeken.
Dit is de beschrijving:
There are plenty of auto translate plugins, but they leave the content rigid with grammatical errors. For those needing a solution to translate a WordPress site manually into unlimited languages or versions, WP-Translate is for you. Using shortcodes, template tags, and a widget, you can easily create a site that will reflect appropriate content, images, links, and text for each language. You can use simple shortcodes in your content, or customize your templates to change your entire site. The beautiful thing is that you don't need to create multiple posts or pages for each language. All content is filtered off one post/page.
Denk dat dit is wat je bedoelt ?
Upload translate.php to the /wp-content/plugins/ directory
Activate the plugin through the 'Plugins' menu in WordPress
Add languages in the Translate menu on the admin panel.
Visit: http://www.misternifty.com/translate for full documentation of shortcodes and template tags.
Heb je een beheerders account in Wordpress ?
Heb je nog geen account? Registreer je nu en word deel van onze community!