DEFINE SUB-MENU cusmaint1 
              MENU-ITEM crecust LABEL "Create New Customer" 
              MENU-ITEM chgcust LABEL "Chan&ge Existing Customer" 
              MENU-ITEM delcust LABEL "Delete Customer" 
              MENU-ITEM prtcust LABEL "Print Customer List" 
              MENU-ITEM extcust LABEL "E&xit ABL". 
              
            DEFINE MENU mainbar MENUBAR 
              SUB-MENU cusmaint1 LABEL "Customer". 
              
            ON CHOOSE OF MENU-ITEM crecust 
              RUN newcust.p. 
              
            ON CHOOSE OF MENU-ITEM chgcust 
              RUN chgcust.p. 
              
            ON CHOOSE OF MENU-ITEM delcust 
              RUN delcust.p. 
              
            ON CHOOSE OF MENU-ITEM prtcust 
              RUN prncust.p. 
              
            ON CHOOSE OF MENU-ITEM extcust 
              QUIT. 
              
            ASSIGN 
              CURRENT-WINDOW:MENUBAR = MENU mainbar:HANDLE 
              CURRENT-WINDOW:VISIBLE = TRUE. 
              
            WAIT-FOR WINDOW-CLOSE OF CURRENT-WINDOW. 
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