xml.instruct! xml.gpx("version" => "1.1", "xmlns:xsi" => "http://www.w3.org/2001/XMLSchema-instance", "xsi:schemaLocation" => "http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd") do xml << (render(:partial => "note", :collection => @notes) || "") end