Sources close to Dina Lohan tell TMZ ... Lindsay's mother was shocked when she heard the judge order LiLo to rehab ... because even Dina thought Lindsay was 100% jail-bound.
We're told Dina and her other children are all "beyond excited" that Lindsay will be able to get the help she wants at Betty Ford ... because "everyone thought she would be sentenced to jail for 30 days."
As we just reported, Lindsay must remain in rehab until January 3.
Dina Lohan -- 'Beyond Excited' Over Judge's Decision
10/22/2010 1:40 PM PDT BY TMZ STAFF
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