PROCEDURE: share_colors PURPOSE: Procedure that allows multiple IDL sessions to share the same color table. The procedure should be called in each session before any windows are created. USAGE: Typically this procedure will be put in a startup routine. such as: share_colors,first=f if f then loadct,39 KEYWORDS: FIRST Named variable that will be set to 1 if this is the first session, and set to 0 otherwise. SIDE EFFECTS: Creates a temporary file with the name 'idl_cmap:NAME' on the users home directory where NAME is the name of the display machine. This file is deleted upon exiting IDL. The procedure is only useful on UNIX for users with a common home directory.