[www] new filled curves examples

git-svn-id: svn+ssh://rubyforge.org/var/svn/ctioga2/trunk/www@479 86c91514-0d3b-42e0-aed1-4dfce116d947
[www] fix few glitches

git-svn-id: svn+ssh://rubyforge.org/var/svn/ctioga2/trunk/www@480 86c91514-0d3b-42e0-aed1-4dfce116d947