NAME
	SortGList -- Sort the current gel list, ordering its y,x coordinates.

   SYNOPSIS
	SortGList(rp)
	          A1

	void SortGList(struct RastPort *);

   FUNCTION
	Sorts the current gel list according to the gels' y,x coordinates.
	This sorting is essential before calls to DrawGList or DoCollision.

   INPUTS
	rp = pointer to the RastPort structure containing the GelsInfo

   RESULT

   BUGS

   SEE ALSO
	InitGels()  DoCollision()  DrawGList()  graphics/rastport.h