Fixes #13332 !strict It looks sometimes IE does not have domNode.clientHeight, and thus the calculated height becomes negative and it causes script error in resize(). Added some fail-safe code.
Fixes #13332 !strict It looks sometimes IE does not have domNode.clientHeight, and thus the calculated height becomes negative and it causes script error in resize(). Added some fail-safe code.

git-svn-id: ee6e786acc44c9cca5ee17c71a5576c45c210361@25647 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful