alt="$msg.get("svn.configsheet.viewdiff")"

It is better to use something like:

    alt="$msg.get('svn.configsheet.viewdiff')"

1. It's easier to see the pairs of quotes correctly
1. It's slightly better for performance, since Velocity parses strings in double quotes (so that nested $variables are interpolated), but strings in single quotes are printed directly
1. It doesn't apply here, but in CSS or JS files the mismatched quotes could prevent the minification of the files at build time