ajax and the future of web applications

... executed when the status of the request changes, thus enabling the AJAX mechanism The open method is used for initializing a request It has two required parameters and a few optional ones The open ... connection to the server; it is only used to set the connection options The first parameter specifies the method used to send data to the server page, and it can have a value of GET, POST, or PUT The second ... used when the response from the server is in XML format Unless the responseXml method of the XMLHttpRequest object is used, there's really no XML appearing anywhere, except for the name of that

Ngày tải lên: 09/08/2014, 12:22

... headaches After setting the error-handling routine, we set the content type to XML, and divide the first received number by the second number Note the usage of $_GET to read the variables sent using ... error_handler.php? First, the file uses the set_error_handler function to establish a new error-handling function: <?php // set the user error handler method to be error_handler set_error_handler('error_handler', ... in action in several exercises of this book, including the AJAX Form Validation, and the AJAX Chat) • You can ignore the message altogether if you can implement the code in such a way that it

Ngày tải lên: 09/08/2014, 12:22

... values are mandatory, and mark them with the NOT NULL property, which says the column isn't allowed to store NULL values The definition of NULL is undefined When reading the contents of the table ... designers are not bothered with the programming part of the site When preparing the design of your code, keep in mind is that the power, flexibility, and scalability of the architecture is directly ... AJAX application called friendly, that implements many of the practices and techniques shown so far The application will have a standard structure, composed of these files: • index.html is the

Ngày tải lên: 09/08/2014, 12:22

... adds a new element at the end of our cache array The cache entry is composed of two parts, the value and the ID of the field to be validated, separated by '&' Note that the new element is added ... in the session and if it gets reloaded, index.php will show the fields that didn't pass the test In the case of AJAX calls, the server composes a response that specifies if the field is valid The ... right under the validated field, but you can customize the position and appearance of these error messages in validate.css by changing the properties of the error CSS class Trang 11AJAX Form

Ngày tải lên: 09/08/2014, 12:22

... coordinates as the offsetx and offsety, the server page that will return the RGB code of the chosen color is called. The change of state of the HTTP request object is handled by the handleGettingColor ... y) returns the index of the color of the pixel at the specified location in the image specified by image. Returns the index of the color of the pixel at the specified location in the image ... code of a pixel given the x and y position in the image. The position of the pixel is retrieved in the getMouseXY function. The getColor function retrieves the RGB code of the color chosen by the

Ngày tải lên: 09/08/2014, 12:22

... formats, RSS 2.0 and Atom are the most popular choices Learn more about the history of RSS and Atom in the Wikipedia—the link to the RSS page is While RSS is not the only standard for expressing feeds ... an explosion of new sources of information, such as news sites appearing every day (such as http://www.digg.com and http://www.newsvine.com), and the growing trend of web life— weblogs (every ... practice through web syndication, which is that form of syndication where parts of a website (such as news, weblog posts, articles, and so on) are made available for other sites or applications

Ngày tải lên: 09/08/2014, 12:22

... examples throughout the book; these instructions apply to both Windows and *nix users, so be sure not to miss this section at the end of the appendix To build websites with AJAX and PHP you will ... client you'll see the list reordered, while the server updates the order of each element in the database This is how deleting a task works: 1 The user drags an item and drops it on the DROP HERE ... item on the drop zone: Trang 9AJAX Drag and Drop 250 This code asks the user for confirmation, and if this is received hides that element from the screen and calls process, which sends the HTTP

Ngày tải lên: 09/08/2014, 12:22

... understandable to the layman, the evidence for and against the idea that global warming due to the emission of CO 2 and other greenhouse gases into the atmosphere is a threat to the future of the ... Current off the east coast of Asia, the Mozambique Current off the east coast of Africa There are large regions of slowly... flows all the way around the globe, and the easterly ... Daschle and Gore are against drilling in the ANWR, so they use the 4 GLOBAL WARMING AND THE FUTURE OF THE EARTH former figure. Breaux is in favor of drilling, so he uses the latter figure. But are they

Ngày tải lên: 04/10/2014, 23:04

... The gist of their response was that, while they had their finger on the pulse and their eye on the data, they had made two related diagnostic mistakes: the error of extrapolation and the (rather ... characteristic of the global polit-ical economy was the reversal of the flow of trade and capital surpluses between the United States and the rest of the world The hegemon, for the first time ... in the era of globalization, on the wonders of an aggressively atomistic entrepreneurial culture, on the wizardry of Wall Street and on the brilliance of the post-Big Bang City of London, the

Ngày tải lên: 03/11/2014, 13:49

... examples of reform, exploring the reasons behind policy changes, and enquires into the origin (and likely destination) of current shifts in our perception of the role of law and the place of the state ... views the state as the product of a system of rules where compliance is ensured via un-derived structures of authority A Hegelian view of the state on the other hand sees the institutions of the ... politics be subsumed into the will of the market? move-One of the key problems we have in understanding the relationship between the state and the market is the obscuring effects of ‘economism’ We can

Ngày tải lên: 04/11/2014, 05:30

... trouble than they’re worth.” Nevertheless, Hong Kong companies that do use FTAs overwhelmingly report the benefits of doing so They want more of them And the SAR aims to be at the heart of future negotiations ... that includes Iceland, Liechtenstein, Norway and Switzerland) and Chile The agreement that has arguably had the most impact on the economy and Hong Kong companies is the Mainland and Hong Kong Closer ... interviewees for their time and insights The findings of this report are those of the EIU and do not necessarily reflect the views of the sponsor This report was written by Jonathan Hopfner and edited

Ngày tải lên: 04/12/2015, 00:02

... onfucianism and the future o f the law in VietnamThe insufficiency, ov erlapping and contradiction of legal do cu m ents or the lack of legal staff a re j u s t only te m p o ra ry and superficial ... oderately The medium is im p a rtia l behavior, a basis for the right The harmonious is uncontradictory behavior - a common link betw een people Therefore, C onfucianism is a Doctrine of the M e ... the in te ra ctio n b e tw e e n th e su p erio r and the inferior It only focused on th e du ties of being obedien t of th e inferior The concept of th r e e moral bonds m ay be s h a p e d by

Ngày tải lên: 14/12/2017, 20:50

... bauhaus ideology and the future of web design simon collison fowd tour 2009 bauhaus ideology and the future of web design simon collison fowd tour 2009 bauhaus ideology and the future of web design ... bauhaus ideology and the future of web design simon collison fowd tour 2009 bauhaus ideology and the future of web design simon collison fowd tour 2009 bauhaus ideology and the future of web design ... ideology and the future of web design simon collison economy and simplicity fowd tour 2009 bauhaus ideology and the future of web design simon collison a bauhaus view of tomorrow’s web fowd tour...

Ngày tải lên: 10/07/2014, 15:26

... box-sizing sets the point of the element from which the width is calculated The default is content-box, which means the stated width of the element applies to the content, and the padding and border ... versions of their sites Media Queries are already being recognized and hailed by some of the leading lights of web development, and talks are being given about their use at all of the big web conferences ... to right: The first div has the default content-box value for box-sizing, so the stated width—150px—is the width of the content, and the border and padding are added to the content In the second...

Ngày tải lên: 20/09/2013, 09:09

... report was prepared for the Office of the Secretary of Defense (OSD) This research was conducted under the auspices of the Forces and Resources Policy Center of the RAND National Defense Research ... funded research and development center sponsored by the OSD, the Joint Staff, the Unified Combatant Commands, the Department of the Navy, the Marine Corps, the defense agencies, and the defense Intelligence ... of how the racial and ethnic distribution of officers Officer Classification and the Future of Diversity Among Senior Military Leaders Figure 1.1 Racial/Ethnic Distribution in the Enlisted, Officer,...

Ngày tải lên: 06/03/2014, 21:20

... Table of Contents Preface Chapter 1: The World of AJAX and PHP The big picture AJAX and Web 2.0 Building websites since 1990 HTTP and HTML PHP and other server-side technologies JavaScript and other ... Bank of Greece, where he coordinates the development and implementation of enterprise software for the banking industry He is also the author of the books AJAX and PHP: Building Responsive Web Applications ... that the web application can validate the entered data in the background, while the user fills the form For example, after the user types the first letter of the city, the web browser calls the...

Ngày tải lên: 06/03/2014, 21:20

... overview of all relevant sources as they can achieve They want to see the shape of the elephant” of their topic the full extent of its different important parts and how the parts fit together Librarians ... on the “shape” of the book literature on their topics, too many digital library theorists fail even to notice their existence–or they dismiss them out of hand because the system that created them ... survey of Athenian financial history from the transfer of the Delian Treasury in, probably, 454 to the end of the Peloponnesian War some fifty years later, in the hope that future research will profit...

Ngày tải lên: 07/03/2014, 23:20

... estimate of the age of Earth In comparison, the WMAP satellite today has measured the echo of the big bang itself to give us the most authoritative age of the universe The WMAP data reveals that the ... most of it is in the form of hydrogen and helium, and probably only 0.03 percent takes the form of the heavy elements.) Most of the universe is actually made of mysterious, invisible material of ... represent the crowning achievement of the last two thousand years of research in physics, ever since the Greeks first began the search for a single coherent and comprehensive theory of the universe The...

Ngày tải lên: 10/03/2014, 21:20

... or the brain, in the adult body They can renew themselves in the body, making identical copies of themselves for the lifetime of the organism, or become specialized to yield the cell types of the ... science and technology and to their use for the general welfare Upon the authority of the charter granted to it by the Congress in 1863, the Academy has a mandate that requires it to advise the federal ... members of appropriate professions in the examination of policy matters pertaining to the health of the public The Institute acts under the responsibility given to the National Academy of Sciences...

Ngày tải lên: 15/03/2014, 09:20

... to take advantage of these government handouts of your money, and wineries represent just a handful of the thousands of industries and mostly wealthy households that have done the same Fifth, photovoltaic ... within the communities of scientists, engineers, and other experts who work on solar energy But because of specialization and occupational silo effects, few of these professionals capture the entire ... owners are often shocked by the underwhelming performance of their solar arrays in the real world For example, roof jobs may require that they disconnect, remove, and reinstall their rooftop arrays...

Ngày tải lên: 16/03/2014, 22:02