visFinal Library Method
Short Description: Set visibility of associated HTML element after complete animation
Signature: t.visFinal ([v])
Class: transition Class
Sets the visibiity of the element associated with the current transition after
finishing playing the complete animation.
v can be any valid CSS value for the visibility property, e.g. hidden or visible or "".
If v is not specified the visibility is set to the value the property had before
playing the animation.