Node.js stops working when I log out

I logged in as root to my CentOS 5/cPanel server and I typed the following:

cd /usr/local/bin/
git clone --depth 1 http://github.com/joyent/node.git
cd node
git checkout origin/v0.4 # optional.  Note that master is unstable.
export JOBS=2 # optional, sets number of parallel commands.
mkdir ~/local
./configure --prefix=$HOME/local/node
make
make install
echo 'export PATH=$HOME/local/node/bin:$PATH' >> ~/.profile
source ~/.profile

It seems to be working fine until I log out from the server and log back in it's as it wasn't installed:

[~]# node test.js
-bash: node: com开发者_开发技巧mand not found

If I type: source ~/.profile it starts working again until I log out.

Please help. Thanks.

EDIT:

This is the content of my .bash_profile, how should I change it?

# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH
unset USERNAME

When bash is invoked as an interactive login shell, or as a non-interactive shell with the --login option, it first reads and executes commands from the file /etc/profile, if that file exists. After reading that file, it looks for ~/.bash_profile, ~/.bash_login, and ~/.profile, in that order, and reads and executes commands from the first one that exists and is readable. The --noprofile option may be used when the shell is started to inhibit this behavior.

Maybe you have a .bash_profile and it's being used instead?