jQuery Mobile - responsive website question

Hi everyone,

I have a responsive website but apparently that doesn’t mean it will work on a mobile. I need to add something like jQuery Mobile. How difficult would it be to integrate jQuery Mobile with an existing responsive website? My website uses a number of plugins, some of which are jQuery UI plugins. Do I keep these or use those of jQuery Mobile – if there are equivalent ones? Ideally I’d like to keep my website as is and only use jQuery Mobile for screens below, lets say 400px, but that probably won’t work?

What to do?

Thank you for any advice!