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Pay per click campaigns can be categorized into two major categories: sponsored match (or keyword) and content match. Sponsored match campaigns involve the display of advertisements on search engine results pages, whereas content match campaigns involve the display of advertisements on publisher websites, newsletters, and e-mails.
There are other types of pay per click programs that target product or service searches and product comparison sites. Search engine companies may participate in more than one category. PPC programs do not generate any revenue solely from Web traffic for websites that display the advertisements: Revenue is generated only when a user clicks on the advertisement itself.

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The term Ajax has come to represent a broad group of web technologies that can be used to implement a web application that communicates with a server in the background, without interfering with the current state of the page. In the article that coined the term Ajax, Jesse James Garrett explained that it refers specifically to these technologies:

* XHTML and CSS for presentation
* the Document Object Model for dynamic display of and interaction with data
* XML and XSLT for the interchange and manipulation of data, respectively
* the XMLHttpRequest object for asynchronous communication
* JavaScript to bring these technologies together

Since then, however, there have been a number of developments in the technologies used in an Ajax application, and the definition of the term Ajax. In particular, it has been noted that:

* JavaScript is not the only client-side scripting language that can be used for implementing an Ajax application. Other languages such as VBScript are also capable of the required functionality.
* the XMLHttpRequest object is not necessary for asynchronous communication. It has been noted that IFrames are capable of the same effect.
* XML is not required for data interchange and therefore XSLT is not required for the manipulation of data. JavaScript Object Notation (JSON) is often used as an alternative format for data interchange, although other formats such as preformatted HTML or plain text can also be used.

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The term Ajax has come to represent a broad group of web technologies that can be used to implement a web application that communicates with a server in the background, without interfering with the current state of the page. In the article that coined the term Ajax, Jesse James Garrett explained that it refers specifically to these technologies:

* XHTML and CSS for presentation
* the Document Object Model for dynamic display of and interaction with data
* XML and XSLT for the interchange and manipulation of data, respectively
* the XMLHttpRequest object for asynchronous communication
* JavaScript to bring these technologies together

Since then, however, there have been a number of developments in the technologies used in an Ajax application, and the definition of the term Ajax. In particular, it has been noted that:

* JavaScript is not the only client-side scripting language that can be used for implementing an Ajax application. Other languages such as VBScript are also capable of the required functionality.
* the XMLHttpRequest object is not necessary for asynchronous communication. It has been noted that IFrames are capable of the same effect.
* XML is not required for data interchange and therefore XSLT is not required for the manipulation of data. JavaScript Object Notation (JSON) is often used as an alternative format for data interchange, although other formats such as preformatted HTML or plain text can also be used.

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FEATURES

Structured programming

JavaScript supports all the structured programming syntax in C (e.g., if statements, while loops, switch statements, etc.). One partial exception is scoping: C-style block-level scoping is not supported. JavaScript 1.7, however, supports block-level scoping with the let keyword. Like C, JavaScript makes a distinction between expressions and statements.

[edit] Dynamic programming

dynamic typing
As in most scripting languages, types are associated with values, not variables. For example, a variable x could be bound to a number, then later rebound to a string. JavaScript supports various ways to test the type of an object, including duck typing.[8]
objects as associative arrays
JavaScript is heavily object-based. Objects are associative arrays, augmented with prototypes (see below). Object property names are associative array keys: obj.x = 10 and obj["x"] = 10 are equivalent, the dot notation being merely syntactic sugar. Properties and their values can be added, changed, or deleted at run-time. The properties of an object can also be enumerated via a for…in loop.
run-time evaluation
JavaScript includes an eval function that can execute statements provided as strings at run-time.

[edit] Function-level programming

first-class functions
Functions are first-class; they are objects themselves. As such, they have properties and can be passed around and interacted with like any other object.
inner functions and closures
Inner functions (functions defined within other functions) are created each time the outer function is invoked, and variables of the outer functions for that invocation continue to exist as long as the inner functions still exist, even after that invocation is finished (e.g. if the inner function was returned, it still has access to the outer function’s variables) — this is the mechanism behind closures within JavaScript.

[edit] Prototype-based

prototypes
JavaScript uses prototypes instead of classes for defining object properties, including methods, and inheritance. It is possible to simulate many class-based features with prototypes in JavaScript.
functions as object constructors
Functions double as object constructors along with their typical role. Prefixing a function call with new creates a new object and calls that function with its local this keyword bound to that object for that invocation. The function’s prototype property determines the new object’s prototype.
functions as methods
Unlike many object-oriented languages, there is no distinction between a function definition and a method definition. Rather, the distinction occurs during function calling; a function can be called as a method. When a function is invoked as a method of an object, the function’s local this keyword is bound to that object for that invocation.

[edit] Others

run-time environment
JavaScript typically relies on a run-time environment (e.g. in a web browser) to provide objects and methods by which scripts can interact with “the outside world”. (This is not a language feature per se, but it is common in most JavaScript implementations.)
variadic functions
An indefinite number of parameters can be passed to a function. The function can both access them through formal parameters and the local arguments object.
array and object literals
Like many scripting languages, arrays and objects (associative arrays in other languages) can be created with a succinct shortcut syntax. The object literal in particular is the basis of the JSON data format.
regular expressions
JavaScript also supports regular expressions in a manner similar to Perl, which provide a concise and powerful syntax for text manipulation that is more sophisticated than the built-in string functions.

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CodeIgniter encourages use of the model-view-controller architectural pattern.

It shares a number of characteristic concepts and features with other MVC frameworks like Ruby on Rails:

* Support for multiple database platforms
* database access with active records
* Session Management
* Form and Data Validation
* Full Page Caching
* Scaffolding
* Template Engine Class
* Support for Hooks, Class Extensions, and Plugins

Among other MVC frameworks, CodeIgniter positions itself by these properties:

* PHP 4 Compatible. Use with PHP 5 provides benefits such as method chaining ability.
* Light weight codebase
* Simple installation and directory structure
* Error Logging
* Flexible URI Routing

It adds a number of features or classes that other frameworks do not yet offer per default:

* Security and XSS Filtering
* Email Sending Class. Supports Attachments, HTML/Text email, multiple protocols (sendmail, SMTP, and Mail) and more.
* Image Manipulation Library (cropping, resizing, rotating, etc.). Supports GD, ImageMagick, and NetPBM
* File Uploading Class
* FTP Class
* Localization
* Pagination
* Data Encryption
* Benchmarking
* Application Profiling
* Calendaring Class
* User Agent Class
* Zip Encoding Class
* Trackback Class
* XML-RPC Library
* Unit Testing Class
* Search-engine Friendly URLs
* Large library of “helper” functions.

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We at Encoders offers professional Website development services to help you successfully plan, create, maintain and market your Web development project.

Whether you’re looking for a complete Internet solution or just a minor update, Encoders can provide your business with a solution that meet your needs. Our team works with you every step of the way to create a web site to your specifications and satisfaction.

Our strengths include fresh and creative graphic design, solid information architecture, and useful Web interactive features including polls, e-newsletters, message boards and forums.

Our focus is on clean looking, fast loading, website design and web page design with intuitive navigation and layout that enables the visitor to find what he or she is looking for quickly and easily.

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Located in Kolkata (previously-Calcutta), India, we provide an integrated service offering that includes strategic consulting and customer research, graphic design, followed by development and implementation of world-class e-business applications.

Our development team represents one of the leading resources for innovative and sophisticated web-based solutions.Today’s trade spends heavily on e-business solutions and web based applications in order to promote and sell products, provide customer service & management, and consultation with business partners on the web.

Adaptibility , Skill and Proficiency are the tools we use to enhance every business and organization partnership. We share a mark with our clients to generate the maximum return on investment from their website model within the shortest possible span. Part of our commitment to our clients is to regularly upgrade these models with new phases in development, complexity and return on investment.

At Encoders our development team represents one of the leading resources for innovative and sophisticated web-based solutions accompanied with full range of custom, interactive, web development software and tools along with professional Internet strategies.

As a web solutions provider, we help our clients bring the right combination of strategy, experience, design, and technology to every aspect of their Web-based projects.

Our strategy for project development is anchored in a phased approach. This lets us establish a clear set of goals that ensure the quality of work is maintained throughout the entire development process for 100% satisfaction of our clients.

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A Web page is a document, typically written in (X)HTML, that is almost always accessible via HTTP, a protocol that transfers information from the Web server to display in the user’s Web browser.All publicly accessible websites are seen collectively as constituting the “World Wide Web”.The pages of websites can usually be accessed from a common root URL called the homepage, and usually reside on the same physical server. The URLs of the pages organize them into a hierarchy, although the hyperlinks between them control how the reader perceives the overall structure and how the traffic flows between the different parts of the sites.Some websites require a subscription to access some or all of their content. Examples of subscription sites include many business sites, parts of many news sites, academic journal sites, gaming sites, message boards, Web-based e-mail, services, social networking websites, and sites providing real-time stock market data. Because they require authentication to view the content they are technically an Intranetsite Intranet.

Organized by function a website may be

* a personal website
* a commercial website
* a government website
* a non-profit organization website

It could be the work of an individual, a business or other organization and is typically dedicated to some particular topic or purpose. Any website can contain a hyperlink to any other website, so the distinction between individual sites, as perceived by the user, may sometimes be blurred.Websites are written in, or dynamically converted to, HTML and are accessed using a software interface classified as an user agent. Web pages can be viewed or otherwise accessed from a range of computer-based and Internet-enabled devices of various sizes, including desktop computers, laptop computers, PDAs and cell phones.A website is hosted on a computer system known as a web server, also called an HTTP server, and these terms can also refer to the software that runs on these system and that retrieves and delivers the Web pages in response to requests from the website users. Apache is the most commonly used Web server software and Microsoft’s Internet Information Server (IIS) is also commonly used.

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