More than one language and Translation "on the fly" (Q3 of 3)

I have found a way to change the backend of my multisite WordPress “on the fly” with WP Native Dashboard, as well as the blog/pages with qTranslate, but how do i go about the FrameMarket/GridMarket theme things as; items , visit a shop, cart, add to cart etc. when i will have more than one language in my shop. Do i have to hardcode it in the php and then have more WordPress installations or is there a way to translate/and select language as easy as WP Native Dashboard but in the Frontend.

Kind Regards

Lars Baun