MACROMEDIA FLASH 8-LEARNING ACTIONSCRIPT 2.0 IN FLASH Manual page 140

All built-in class names, component class names, and interface names are reserved words, and
should not be used as identifiers in your code:
Accessibility
Binding
CellRenderer
ComboBox
CustomActions
DataHolder
Date
DeltaItem
Error
Iterator
Loader
Math
Microphone
NetConnection
Object
ProgressBar
ScrollPane
SOAPCall
StyleManager
TextFormat
Tree
UIEventDispatcher
WebServiceConnector Window
XUpdateResolver
Several words, although they are not reserved words, should not be used as identifiers (such as
variable or instance names) in your ActionScript code. These are words that are used by the
built-in classes that make up the ActionScript language. Therefore, do not use the names of
properties, methods, classes, interfaces, component class names, and values as names in your
code (such as when you name variables, classes, or instances).
140 Syntax and Language Fundamentals
Accordion
Boolean
CheckBox
ComponentMixins
CustomFormatter
DataProvider
DateChooser
DeltaPacket
FocusManager
Key
LoadVars
Media
Mouse
NetStream
PendingCall
RadioButton
Selection
Sound
System
TextInput
TreeDataProvider
UIObject
Alert
Button
Collection
ContextMenu
CustomValidator
DataSet
DateField
DepthManager
Form
Label
LocalConnection
Menu
MovieClip
Number
PopUpManager
RDBMSResolver
SharedObject
Stage
TextArea
TextSnapshot
TypedValue
Video
XML
Array
Camera
Color
ContextMenuItem
DataGrid
DataType
Delta
EndPoint
Function
List
Log
MenuBar
MovieClipLoader
NumericStepper
PrintJob
Screen
Slide
String
TextField
TransferObject
UIComponent
WebService
XMLConnector