prepare for IE br

git-svn-id: http://hustoj.googlecode.com/svn@2210 19ab8b60-bd6c-11dd-baed-41e496641fac
IE need <br>

git-svn-id: http://hustoj.googlecode.com/svn@2211 19ab8b60-bd6c-11dd-baed-41e496641fac
4 secs

git-svn-id: http://hustoj.googlecode.com/svn@2212 19ab8b60-bd6c-11dd-baed-41e496641fac
 if( handler_interval) window.clearInterval( handler_interval);

git-svn-id: http://hustoj.googlecode.com/svn@2213 19ab8b60-bd6c-11dd-baed-41e496641fac