Hold Em Rules

[Dr_Jeckyl_00]

When I play live there is often disagreement about where the button, SB & BB move when someone gets knocked out (including when it moves to HU). I have seen 3 solutions and have no idea which is correct (1-button moves, 2 blinds move, 3-both blinds and button move so that everyone pays both blinds and no one is ever the button more than once). Does anyone know or preferably have a link to the official Hold'Em rules as I can't find anything that gets into this level of detail for Hold Em. Thanks