Network
Network class transmits and receives the data by HTTP.
Network.downloadAsText(url[, postdata])
Downloads the data which exists at the internet address specified by url as text. If it communicates not by GET but by POST, you specify "postdata" by a text. The downloaded data is returned as a string type.
Network.downloadAsXml(url[, postdata])
Downloads the data which exists at the internet address specified by url as XML. If it communicates not by GET but by POST, you specify "postdata" by a text. The downloaded data is returned as a XmlNode class.