feat #1228  section refresh animation

implementation of the section refresh animation

close #1228
fix #1368 Fixing test failing on IE7/IE8

This commit fixes a test failing on IE7/IE8
1.6.9
fix #1367 use `expando.value` instead of deprecated `.nodeValue`

Chrome and Firefox dev tools log deprecation message of `.nodeValue`
which may unnecessarily pollute applications' logs.

The alternative `.value` seems to be supported by all browsers
(tested down to Firefox 3 and IE7)