Automate CVS login using shell script

Hi,
Can anyone pls help me to automate login to cvs. I basically want to login to cvs and update a file.
the script always gets to the login and returns the prompt for a password.
Is there any way to send the password in the script itself.
Here is the script:

 
#!/bin/ksh
cvsdir="/home/G/eais/"
#Update CVS
echo "updating CVS for $1"
cd $cvsdir
. cvslogin.sh

It is not required that the password needs to be masked or taken fromanother file. Since very few have access to the server i can hardcode the password in the shell script itself.

Any help is greatly appriciated.

P.S: I also searched the forum and did not find anything in this regard