ProgressBar
                                        (System Library)
| LeftReference | 
| A constant number that gives the left side reference coordinate. | 
| BottomReference | 
| A constant number that gives the bottom side reference coordinate. The top and bottom references are measured down from the top of the screen. | 
| RightReference | 
| A constant number that gives the right side reference coordinate. | 
| TopReference | 
| A constant number that gives the top side reference coordinate. | 
| Value | 
| Required. The value to display as the progress. | 
| Low | 
| Optional numeric, specifying the minimum value for the progress bar. Defaults to zero. | 
| High | 
| Optional numeric, specifying the maximum value for the progress bar. Defaults to 100. | 
| LeftLabel | 
| Optional text providing the left-justified label. | 
| RightLabel | 
| Optional text providing the right-justified label. | 
| Align | 
| Optional numeric. If 0 (the default if unspecified) the graphic will be top-justified. If 1, the graphic will be center-justified. | 
| Delay | 
| Optional numeric. The number of seconds to wait before the graphic is displayed. Defaults to zero. | 
| ContinuousLoop | 
| Optional Boolean. When set true, the progress bar will loop continuously rather than representing the value. | 
| Comments: | None | 
