def to_xml
    joined = {"snapper"=>{:fqdn=>"snapper.xxx.xxxxxxx.com", :ip=>"10.10.10.1", :operatingSystem=>"RedHat"}, "nrtgpl000.xxx.xxxxxxx.com"=>{:nagios=>["Host Alive", "cpu", "connections", "memory"]}}

    xml = XML::Document.new
    xml.root = XML::Node.new('masterlist')

    joined.each { |key,value|
        host = XML::Node.new('host')
        host.content = key
        xml.root << host
        if value.is_a?(Hash)
          value.each { |key,value|
            if value.is_a?(Array)
                value.each { |a|
                    child = XML::Node.new(key)
                    child.content = a
                    host << child
                }
            else
               child = XML::Node.new(key)
               child.content = value
               host << child
            end
          }
        end
    }
    xml
  end