corrected a couple of errors in js files

git-svn-id: https://plugins.svn.wordpress.org/mlr-timeline/trunk@817074 b8457f37-d9ea-0310-8a92-e5e31aec5664
update class file

git-svn-id: https://plugins.svn.wordpress.org/mlr-timeline/trunk@817076 b8457f37-d9ea-0310-8a92-e5e31aec5664