 
     update: ->
         @sheet.spec.data[0][0] =  @slider.slider("value")
+
+
+toolbox =
+    sheet: Sheet    
+    figure: PlotXY
+    table: Table
+    markdown: Markdown
    
 ## From GUI
 


    console.log "#### tables ####"
    for t of $blab.table
        $blab.table[t].update()
        console.log $blab.table[t].stringify()


        $blab.slider[sl].update()
        console.log $blab.slider[sl].stringify()

    # local copy of vars
    #console.log "?????", $blab.sheet 
    for sym of $blab.sheet
        #console.log "sh??", sym
        $blab.sheet[sym].toLocal()

    console.log "######## user-code ########"

