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DataSource's can be made to point to local or test XML data for rapid prototyping and later be changed to point to a server and everything will continue work the same way. The XSD DataSource sample illustrates how you can read a DataSource definition for a server using a standard XML Schema.
this tutorial will be about using the Mootools JS library with ajax, if you dont know a thing about ajax you will do just fine with mootools. but you need to have know some javascript to keep up.
Sun, Dec 20 | from Tutorialized.com