*******************
			*                 *
			*  Commands Menu  *
			*                 *
			*******************


	Interaction with the DNA/GUI begins with a selection from
the commands menu.  Menu selections are made by moving the pointer
into the target menu item and clicking MB1.  All menu buttons
(except "Help" and "Exit" will, upon selection, pop up a sub-menu
to the right of the Commands Menu.  When a Command is selected, the
Command Menu, except "Help", is rendered insensitive.  That is, you
must finish with the submenu before another Command is selected.
Below is a brief summary of each Command item.


****************
*              *
*  Operations  *
*              *
****************

	Its submenu is used for routine analysis of an image.


***********
*         *
*  Image  *
*         *
***********

	Used primarily for displaying secondary images.


*************
*           *
*  Primary  *
*           *
*************

	Utilities for manipulating the primary image.


***********
*         *
*  Extra  *
*         *
***********

	Utilities for manipulating extra images, such as
	individual lane images.


*************
*           *
*  Options  *
*           *
*************

	Miscellaneous utilities.


**************
*            *
*  Profiles  *
*            *
**************

	Used for display of vertical profiles for displayed images.


**********
*        *
*  Help  *
*        *
**********

	Pops up a menu of help menu items.  Each of
these, in turn, pops up a scrolled window of text describing the item.


**********
*        *
*  Exit  *
*        *
**********

	Pops up a dialog asking if you really want to exit.