Javascript bug fix for IE7

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10181 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Revert to test

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10182 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Bug fix

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10183 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
refactored behaviors

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10185 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c