trying to use the jquery UI dialog model form but unable to find out which files in the download are needed for it to work

trying to use the jquery UI dialog model form but unable to find out which files in the download are needed for it to work

HI guys 

I want to use the jquery UI dialog modal form but I am having trouble finding out which js files out of the jquery UI download are needed for it to work. how can I find this out?

thanks