Haven't fed my starter in over a month

I had a great sourdough starter that I had been keeping in my fridge and feeding each week.  We luckily have remodeled our kitchen and I have been without appliances and a sink for a while now, so I haven't fed my starterin over a month.  When I looked at it yesterday, It had about 1/2 inch of liquid on top.  I dumped out hte liquid and stirred what remained.  Surprisingly it didn't look or smell too bad.  Is it any good anymore??  I would think not, but I have no idea.  If it can be saved, I would assume it would need a few feedings before I can beging baking with it again?  HELP!