Absolute vs. Relative Referencing
Top Level Scope (_global, _level, _root)
_global Again
Variable Scope
this Identifier
The basic things you need to know are this:
[LIST=1]
[]_level - the foundation of any Flash movie, this is where all objects are instantiated and ultimately located. There can be up to 16000 levels though _level usually only comes into play when using the loadMovieNum or loadVariablesNum* functions. _level is a MovieClip.
[]_root - a reference to the level that the movie clip is in, in most cases this will be _level0.
[]this - a reference to the current scope.
[]_parent - a reference to the movie clip in which the current movie clip is in, this ends at _level which has no parent.
[]_global - an object available at all scopes without reference, it contains the all of the classes and top-level functions used in the movie.
[*]Absolute referencing is done through a reference to _root or _level. Relative referencing begins at the current scope and uses _parent to move up through the scopes.[/LIST]:hoser:
