[bp/r29589] [FIX] Solve bugs of variables 'undefined is null or not object' at unloading of the page with IE
[bp/r29589] [FIX] Solve bugs of variables 'undefined is null or not object' at unloading of the page with IE

git-svn-id: 9bac41f8ebc9458fc3e28d41abfab39641e8bd1c@29623 b456876b-0849-0410-b77d-98878d47e9d5

changi67/tiki,changi67/tiki,changi67/tiki,changi67/tiki,oregional/tiki,tikiorg/tiki,tikiorg/tiki,tikiorg/tiki,changi67/tiki,tikiorg/tiki,oregional/tiki,oregional/tiki,oregional/tiki