The HIDEABLE is a container that can be hidden on client side. The hiding is a client side operation - so the container is still available as DOM-object internally.

There are two modes for hiding that are controlled by attribute TYPEOFHIDING:

1. the container is temporarily removed from the DOM tree in the browser
2. the container is resized to "0,0" and is internally deactivated

The type of hiding was especially introduced to support scenarios in which some IFRAME is/maybe part of the content of the container. IFRAME instances are not keeping their current state when being removed from the DOM tree and later on re-positioned into the DOM tree. Resizing the container does not remove the content from the DOM tree and as consequence prserves the current state of the contained IFRAME.