Weird to mix HTML site with Flash?

I realize that this may seem like a noob-ish question, but has anyone ever mixed a simple HTML site with Flash? Basically what I mean is like having a simple HTML site for the regular content (news, about, contact etc), and then have another section (in Flash) for the various photo galleries. Is this stupid, or bad practice? I realize that in terms of usability this may not be the best (jumping to and fro html and flash), but it seems like it may work if it’s designed properly. Any thoughts?

I know that the site could be accomplished either way (totally in flash, or html + js), but just thought it may work. Thanks!