Hide Blogger's navbar

I am not sure would Blogger tell me to delete this post, but my other blogs have been hiding the navbar all the time. I thought of recreate my navbar and place it somewhere inside the blog instead of the top, but give up after I've found out it cannot search Chinese characters effectively (my other blogs are in Chinese, obviously). Anyway, here is the piece to hide the navbar:

<script type="text/javascript"&gt; var navBar = document.getElementById("navbar"); if (navBar) navBar.style.display = "none"; </script>