+# Procedure bottom-buttons {w buttonList g}
+# w top level widget with $w.bot-frame
+# buttonList button specifications
+# g grab flag
+# Makes a list of buttons in the $w.bot frame. The buttonList is a list
+# of button specifications. Each button specification consists of two
+# items; the first item is button label name; the second item is a script
+# of be executed when that button is executed. A grab is performed if g
+# is true and it waits for the window to be destroyed.