<%args> String number; String separator = "."; \ <%if number.length() == 7 %>\ <% number.substring( 0, 3 ) %><% separator %><% number.substring( 3 ) %>\ <%elseif number.length() == 10 %>\ <% number.substring( 0, 3 ) %><% separator %>\ <% number.substring( 3, 6 ) %><% separator %><% number.substring( 6 ) %>\ <%else><% number %>