Cập nhật vào ngày Jul 31, 2017
**Added Chapters in XML Tutorial**
Introduction to XML
How Can XML be Used?
XML Tree
XML Syntax Rules
XML Elements
XML Attributes
XML Namespaces
Displaying XML
XML HttpRequest
XML Parser
XML DOM
XML and XPath
XML and XSLT
XML and XQuery
XML, XLink and XPointer
XML Validator
XML DTD
XML Schema
XML on the Server
XML Examples
XML Quiz
W3Schools XML Certificate
AJAX Introduction
AJAX - The XMLHttpRequest Object
AJAX - Send a Request To a Server
AJAX - Server Response