 		}
 		
 		/**
-		 * Property that determines whether the trackSkin
-		 * is centered within this component.
-		 */ 
-		public var centerTrackSkin:Boolean = true;
-		
+		 * Returns a boolean value indicating whether
+		 * the thumb button is currently pressed or
+		 * not 
+		 */ 
+		public function get isThumbPressed():Boolean{
+			return _isThumbPressed;
+		}
+			
 		override public function initialize():void
 		{
 			super.initialize()

			//this.stopDrag();
			_thumbButton.stopDrag();
			this._isThumbPressed=false;
			//this.forceInvalidateDisplayList = true;
			//this.invalidateDisplayList()
		}

					}
				}
				
				// center the trackskin and the thumbButton
				if(this.direction == Direction.HORIZONTAL){
					_trackSkin.y = (unscaledHeight - _trackSkin.height)/2;
					_thumbButton.y = (unscaledHeight - _thumbButton.height)/2;	
				}
				else{
					_trackSkin.x = (unscaledWidth-_trackSkin.width)/2;
					_thumbButton.x = (unscaledHeight - _thumbButton.height)/2;
				}	
				
			}
		}
