As stated previously, the . (dot) character is used to delineate the Object name and the contained property/ method or event. An Object can also contain 'child' objects. Again, the . (dot) character is used to delineate between the Object and its child Object.
Assume an Object named obj1 has a property x. That property can be accessed as obj1.x
If obj1 is a child object of obj2, then the reference to obj1.x is only valid from within obj2.
To access the same property from outside of obj2, the full name is required. This name would be obj2.obj1.x
Because of the hierarchical nature of Object names, the following synonyms _root, _parent and this are implemented to represent (in order) the top-most object (always the main Movie), the immediate parent and the current Object. These synonyms are described in further detail in the Scripting Reference Manual.