A Sprite Object is a Simple Object that has its own Timeline and is a collection of Objects with Effects. A Sprite is equivalent in concept to a Movie Clip in Flash.
Sprites do not support all of the Movie Clip properties and methods. A list of supported items can be found in Movie Clip methods and properties.
Note: There are reserved names that you are NOT allowed to use as the name or variable for scripted objects. The list of reserved words is as follows:
Math, String, Timer, Date, Key, length, text, htmltext, scroll, maxscroll, _root, _parent, this, do, else, for, if, not, playSound, preloadContent, return, setLabel, setLabelAnchor, stopSound, tellTarget, trace, var, while, with, return, true, false, PI, E, LN10, LN2, LOG2E, LOG10E, SQRT2, SQRT1_2, newline, tab, NULL