Add isViewable method to judge if an element is in view.
Add __super__ for sub-class after inherited.
Merge branch 'feature-class-super' into dev
Change implement strategy.
Merge branch 'fix-class-implement' into dev
Change property 'contentType' to 'enctype'.
Add pureText property. Add method param for request.
Merge branch 'feature-Ajax' into dev
Fix syntax.
Fix for null with new Hash.
Complete JS1.6 Array methods.
Fix interface implement method.
Fix semicolon.
Add auto remove listener in propertychange event for IE.
Fix IE8 compatible problem.
Fix wrong variable.
Fix wrong variable.
Fix space.
Add Flash methods.
Merge branch 'feature-flash' into dev