# File lib/cgikit/utilities.rb, line 217
  def class_named_from( name, spaces = [CGIKit, Object] )
    spaces.each do |klass|
      base = klass
      name.split("::").each do |i|
        if i.empty? then
          i = :Object
        end
        if base.const_defined?(i) then
          base = base.const_get(i)
        else
          base = nil
          break
        end
      end
      return base if base
    end
    raise "No such '#{name}' class from #{spaces.inspect}."
  end