numeric.bitMaskClear()
Performs a bitwise mask clear operation.
		numeric.bitMaskClear( start=number, length=number )
	
Returns: Number
| Argument | Description | 
|---|---|
| 
									start
								number,
									
										required | edit Integer, in the range 0-31, inclusive; start bit for mask | 
| 
									length
								number,
									
										required | edit Integer, in the range 0-31, inclusive; length of mask | 
Examples
editnumber = 255;
writeOutput(number.bitMaskClear(5, 5));
writeOutput("<br>");
writeOutput(255.1.bitMaskClear(0, 4));
