I have a McLawl private server. It's fun and all, except when minecraft.net becomes unreachable.

What I would like to do, if at all possible, is embed the World of Minecraft client on a webpage. But not just embed it on a webege, have it use users that are signed up at my site, not minecraft.net. I want it to be minecraft.net independant, so that minecraft.net could die and we could still play and join my server.

If both the above cannot be done, which one can be done?