If ur browser do not support swing and u still want to use swing in your application .then the only way out the plugin.
and for this u need to get HTMLConverter(from sun's site ) and convert your HTML using .
Once converted the page will automatically try to download the plugin when accessed first time. but remember that plugin takes quite a significant amount of time to download and when the user will try to access your application from slow internet ........ it will not be very pleasing for him/her. so do think about the plugin download time before you decide in favour of swing.