----- file created by makedoc on: Thu Nov  5 15:14:59 2009
----- Documentation for /scisoft/xop2.3/extensions/shadowvui/src/vui/xsh_preferences.pro -----

 NAME:
	XSH_PREFERENCES

 PURPOSE:
	Sets the preferences for SHADOW VUI

 CATEGORY:
	Shadow gui application.

 CALLING SEQUENCE:

	XSH_PREFERENCES

 INPUTS:

 OPTIONAL INPUTS:
	
 KEYWORD PARAMETERS:
	GROUP = the widget id of the group parent

 OUTPUTS:
	None.

 OPTIONAL OUTPUTS:

 COMMON BLOCKS:
	shadow (includes the shadow_start (i.e. source .../.shadowrc)
		and SHELL variables.

 SIDE EFFECTS:
	changes the default SHELL (using setenv,'..')

 RESTRICTIONS: 

 PROCEDURE:
	Straightforward.

 EXAMPLE:
	xsh_preferences

 MODIFICATION HISTORY:
 	Written by:	M. Sanchez del Rio
	March 19, 1998

