Thw task that I have done for this week
1. Fix the problem that the submit button cannot be pressed in Internet Explorer browser. Beside that, I add some coding so that data that filled would not missing after pressing the back button. I try to copy the function that have been used in other function because same case with the coding that what I want.

2. Solve the currencies problem. In previous function, it is automatically update after admin press the update button. So now what I have to do is make the function that ask which currencies that admin wish to update.

3. I try using javascript to solve the above problem. However, it posses wrong result because no matter what currencies that admin have chosen, the function will automatically update all the currencies.