Total Amount of all Employee

Question

I have two table

Employee table

Employeeid   Name   Department
1            AA        IT 
2            AB        SALES 
3            AA        IT


Employee Salary

Employeeid         Paydate        Mode      Amount
00001              2011-01-15     Cash       5000


00001              2011-05-15     Cash       5000



00003             2011-02-15     Cash       5000
00003             2011-02-15     Cheque     6000



i need the following out put

Employeeid   Amount
10001        10,000
10002        000000 
10003        11,000