# File lib/cgikit.rb, line 522
 def check_undefined_attributes( *attrs )
		attrs << 'oid'     unless attrs.include? 'oid'
		attrs << 'element' unless attrs.include? 'element'

		definition.each_key { | attr |
			if ( attrs.include? attr ) == false
				raise AttributeError, \
					"Attribute '#{attr}' is undefined attribute - #{name_with_class}"
			end
		}
	end