function cdb() {
	if [ -d "$PWD/$1" ]; then
		command cd "$1"
		return
	fi

	if [ "$1" = '-' ]; then
		command cd -
		return
	fi

	START_DIR="$PWD"

	while [[ $PWD != '/' && $PWD != **"/$1" ]]; do
		command cd ..;
	done

	if [ "$PWD" = '/' ]; then
		command cd "$START_DIR"
		command cd "$1"
	fi
}

alias cd=cdb