Good Friday

John 3:16-17

16 For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. 

17 For God did not send his Son into the world to condemn the world, but to save the world through him. 

JavaScript: The Definitive Guide, 5th Edition pdf download.

JavaScript: The Definitive Guide, 5th Edition

The 5^th  Edition is completely revised and expanded to cover JavaScript as it is used in today's Web 2.0 applications. This book is both an example-driven programmer's guide and a keep-on-your-desk reference, with new chapters that explain everything you need to know to get the most out of JavaScript,  about:-

Scripted HTTP and Ajax, XML processing, Client-side graphics using the canvas tag, Namespaces in JavaScript--essential when writing complex programs, Classes, closures, persistence, Flash, and JavaScript embedded in Java applications, Part I explains the core JavaScript language in detail. If you are new to JavaScript, JavaScript will teach you the language.

Part II explains the scripting environment provided by web browsers, with a focus on DOM scripting with unobtrusive JavaScript. The broad and deep coverage of client-side JavaScript is illustrated with many sophisticated examples that demonstrate how to:-

• ·         Generate a table of contents for an HTML document
• ·         Display DHTML animations
• ·         Automate form validation
• ·         Draw dynamic pie charts
• ·         Make HTML elements drag gable
• ·         Define keyboard shortcuts for web applications
• ·         Create Ajax-enabled tool tips
• ·         Use XPath and XSLT on XML documents loaded with Ajax
• ·         And much more

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Diffrence between A-GPS & GPS

A-GPS & GPS

A-GPS & GPS

A-GPS and GPS are different navigational aids that both use information from satellites to determine their exact location on Earth. GPS stands for Global Positioning System. A GPS device communicates with four or more satellites to determine its exact location coordinates anywhere on Earth. It works in cloudy weather as long as the device has a clear line of sight to the satellites.

A-GPS stands for Assisted Global Positioning System. While it works on the same principles as a GPS the difference here is that it gets the information from the satellites by using network resources e.g. mobile network, also called assistant servers.

Comparison chart

	A-GPS	GPS
Stands for:	Assisted Global Positioning System	Global Positioning System
Source of triangulation information:	Radio signals from satellites and assistance servers e.g. mobile network cell sites	Radio signals from GPS satellites
Speed:	A-GPS devices determine location coordinates faster because they have better connectivity with cell sites than directly with satellites.	GPS devices may take several minutes to determine their location because it takes longer to establish connectivity with 4 satellites.
Reliability:	Location determined via A-GPS are slightly less accurate than GPS	GPS devices can determine location coordinates to within 1 meter accuracy
Cost:	It costs money to use A-GPS devices on an ongoing basis because they use mobile network resources.	GPS devices communicate directly with satellites for free. There is no cost of operation once the device is paid for.
Usage:	Mobile phones	Cars, planes, ships/boats