long lseek( int handle, long offset, int mode )

	- prototype in io.h

	- moves file position of "handle"  to  "offset"  relative to "mode"

	   mode = 0 - SEEK_SET beginning of file
	   mode = 1 - SEEK_CUR current position
	   mode = 2 - SEEK_END or end of file

	- returns -1L on error

	- see	tell()