Let it ride, check for bugs phase

Question

I believe I finished the project, but there are few bugs I don't know how to fix.

1. raise should not exceed the range bet, in my case it does.....
2. When I run out of the money it sometimes adds 200, or just gives me an error.
3. When all 5 cards revelead Let It Ride text in the button should be changed to Rebet and Raise button should disappear, and once Rebet button clicked the text turns back in to the Let it Ride, and Raise button appears.
Just like here  http://free.slotsofvegas.com/let-em-ride.php
4. Could you play a bit and see if you can crash something else?

Four card poker folder is teachers folder and its kind of an example of how to do the project.
Let it ride poker folder is my folder and it has all the files.

So could you please take a loot at it Vulpes? I uploaded it to 4shared the file name is  CSC 253 Casino2Newest.
Thank you!