Best way to encode this video for FLV use *Basic Question*

Hey guys,
I have this video that a client want’s me to put on his website. Now the video is about 10 minutes long and its made up of about 4 different sections. He wants me to make it so people can click on links to jump around in the video.

For instance there is a section called “Home Control” and one called “Lighting” that when clicked would jump to that section of the video.

From a bandwith perspective what makes sense. Should I just have one FLV that is the whole video and create markers so that it will just jump to whatever section people want to go to or should I break the video up into 4 different FLV’s?

What do you guys think?