Does any1 have any advice on how to help my partner get over his gambling addiction b4 he looses his family!?

in may this year i had his son and 2 weeks after he was born i discovered my partner had been lying about everything - pretending to go 2 work & spending all day in the bookies & he lost all our savings & rent which lead to us loosing our house & after being found out then got defensive & tried blaming me so i left with the children & set up a new home of my own with the kids. For the last 5 months he has begged for us back & tried to show me he had mended his ways & i softened & took him back but i didnt let him move back in, i realised he was still playing poker (casinos/pubs/online) & lying to me about it & when i told him to give it up or loose us he told me he couldnt stop playing because it is his life!!! This has gutted me that he could choose poker over us after everything but i know it is an addiction & i want to try & help him only i dont know where 2 start, i have 2 try 4 my family, has anyone been through this or know where i should start?