CJK LaTeX

\documentclass[12pt]{article}
%-------
\usepackage{ucs}
\usepackage[utf8x]{inputenc}
\usepackage[english]{babel}
%-------
\usepackage[overlap, CJK]{ruby}
\usepackage{CJKulem}
\renewcommand{\rubysep}{-0.2ex}
\newenvironment{Japanese}{%
\CJKfamily{min}%
\CJKtilde
\CJKnospace}{}

\begin{document}
\parskip 3ex
\parindent 0pt
\begin{CJK}{UTF8}{}
\begin{Japanese}
日本Linux : 愛してる。
Note : English works too
\end{Japanese}
\end{CJK}
writing english here is also possible but not kanji and furigana...
\end{document}