My question involves labor and employment law for the state of: California

Last December I was put on Disability until 6/30. My doctor has now extended it for another two months.

My employer has held the job open, but this is a very small office and it has been a great burden. I feel very badly about the situation. Of course I want to return, but I'm fortunate to be very employable and would not require more than a month or two to find a job when I'm ready to go back to work.

Here are my questions:
1. Is my employer legally obligated to hold the position open?

2. I wouldn't fight him on being let go. Will I still be eligible for unemployment insurance benefits between the time disability ends and I find a new job?