Looking for a clarifacation on broken magic items. 
What the rules say:
The Alpha 3 says that magic items with the broken condition can only be repaired by either Mending or Make Whole. Mending does not restore any magic properties and Make Whole does so only if your caster level is twice that of the item being fixed. It also says that broken staves and wands use twice the number of charges as normal.
referencing pages: 111 and 154
My questions:
How does this work? If I'm a wizard with a staff (CL 10) and it gets broken, what happens? Can I still use the charges remaining in it (at double cost), can I recharge it as normal? What does it lose, what does it keep? How can I repair it and what does it regain when I do?
What about non-weapon or non-charged magic items (say a headband of INT +4)? For these items that fall into none of the other categories given on pg 154 the PDF only says that their function is not impaired by the broken condition but can still be repaired only via mending or make whole. Do they still work when broken?