I'm a new web programmer and I'm building a website if a Member sign-up he get a wallet, and I want to make this website like a bank .... so when he registers a wallet he can send bitcoin to the wallet and the Website tells him how much he have of bitcoin just like a bank I'm not creating a bank but the idea have the same concept
I would suggest that if you really want to do this you utilise the blockchain.info API and their wallet service. This isn't a project for a novice programmer, if anybody actually trusted your site enough to send funds to it the chances are your site would be hacked repeatedly. You need to be a serious security expert and experienced programmer to store user's Bitcoin.
Start with something safer :)