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Всичко за WEB програмиране(HTML)

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This chapter is a short history of HTML. Its aim is to give readers some idea of how the HTML we use today was developed from the prototype written by Tim Berners-Lee in 1992. The story is interesting - not least because HTML has been through an extremely bumpy ride on the road to standardization, with software engineers, academics and browser companies haggling about the language like so many Ministers of Parliament debating in the House of Commons.

1989: Tim Berners-Lee invents the Web with HTML as its publishing language
The World Wide Web began life in the place where you would least expect it: at CERN, the European Laboratory for Particle Physics in Geneva, Switzerland. CERN is a meeting place for physicists from all over the world, where highly abstract and conceptual thinkers engage in the contemplation of complex atomic phenomena that occur on a minuscule scale in time and space. This is a surprising place indeed for the beginnings of a technology which would, eventually, deliver everything from tourist information, online shopping and advertisements, financial data, weather forecasts and much more to your personal computer.

Tim Berners-Lee is the inventor of the Web. In 1989, Tim was working in a computing services section of CERN when he came up with the concept; at the time he had no idea that it would be implemented on such an enormous scale. Particle physics research often involves collaboration among institutes from all over the world. Tim had the idea of enabling researchers from remote sites in the world to organize and pool together information. But far from simply making available a large number of research documents as files that could be downloaded to individual computers, he suggested that you could actually link the text in the files themselves.

In other words, there could be cross-references from one research paper to another. This would mean that while reading one research paper, you could quickly display part of another paper that holds directly relevant text or diagrams. Documentation of a scientific and mathematical nature would thus be represented as a `web' of information held in electronic form on computers across the world. This, Tim thought, could be done by using some form of hypertext, some way of linking documents together by using buttons on the screen, which you simply clicked on to jump from one paper to another. Before coming to CERN, Tim had already worked on document production and text processing, and had developed his first hypertext system, `Enquire', in 1980 for his own personal use.

Tim's prototype Web browser on the NeXT computer came out in 1990.

Through 1990: The time was ripe for Tim's invention
The fact that the Web was invented in the early 1990s was no coincidence. Developments in communications technology during that time meant that, sooner or later, something like the Web was bound to happen. For a start, hypertext was coming into vogue and being used on computers. Also, Internet users were gaining in the number of users on the system: there was an increasing audience for distributed information. Last, but not least, the new domain name system had made it much easier to address a machine on the Internet.

lthough already established as a concept by academics as early as the 1940s, it was with the advent of the personal computer that hypertext came out of the cupboard. In the late 1980s, Bill Atkinson, an exceptionally gifted programmer working for Apple Computer Inc., came up with an application called Hypercard for the Macintosh. Hypercard enabled you to construct a series of on-screen `filing cards' that contained textual and graphical information. Users could navigate these by pressing on-screen buttons, taking themselves on a tour of the information in the process.

Hypercard set the scene for more applications based on the filing card idea. Toolbook for the PC was used in the early 1990s for constructing hypertext training courses that had `pages' with buttons which could go forward or backward or jump to a new topic. Behind the scenes, buttons would initiate little programs called scripts. These scripts would control which page would be presented next; they could even run a small piece of animation on the screen. The application entitled Guide was a similar application for UNIX and the PC.

Hypercard and its imitators caught the popular imagination. However, these packages still had one major limitation: hypertext jumps could only be made to files on the same computer. Jumps made to computers on the other side of the world were still out of the question. Nobody yet had implemented a system involving hypertext links on a global scale.

The domain name system
By the middle 1980s, the Internet had a new, easy-to-use system for naming computers. This involved using the idea of the domain name. A domain name comprises a series of letters separated by dots, for example: `www.bo.com' or `www.erb.org.uk'. These names are the easy-to-use alternative to the much less manageable and cumbersome IP address numbers.

A program called Distributed Name Service (DNS) maps domain names onto IP addresses, keeping the IP addresses `hidden'. DNS was an absolute breakthrough in making the Internet accessible to those who were not computer nerds. As a result of its introduction, email addresses became simpler. Previous to DNS, email addresses had all sorts of hideous codes such as exclamation marks, percent signs and other extraneous information to specify the route to the other machine.

Choosing the right approach to create a global hypertext system
To Tim Berners-Lee, global hypertext links seemed feasible, but it was a matter of finding the correct approach to implementing them. Using an existing hypertext package might seem an attractive proposition, but this was impractical for a number of reasons. To start with, any hypertext tool to be used worldwide would have to take into account that many types of computers existed that were linked to the Internet: Personal Computers, Macintoshes, UNIX machines and simple terminals. Also, many desktop publishing methods were in vogue: SGML, Interleaf, LaTex, Microsoft Word, and Troff among many others. Commercial hypertext packages were computer-specific and could not easily take text from other sources; besides, they were far too complicated and involved tedious compiling of text into internal formats to create the final hypertext system.

What was needed was something very simple, at least in the beginning. Tim demonstrated a basic, but attractive way of publishing text by developing some software himself, and also his own simple protocol - HTTP - for retrieving other documents' text via hypertext links. Tim's own protocol, HTTP, stands for HyperText Transfer Protocol. The text format for HTTP was named HTML, for HyperText Mark-up Language; Tim's hypertext implementation was demonstrated on a NeXT workstation, which provided many of the tools he needed to develop his first prototype. By keeping things very simple, Tim encouraged others to build upon his ideas and to design further software for displaying HTML, and for setting up their own HTML documents ready for access.

Tim bases his HTML on an existing internationally agreed upon method of text mark-up
The HTML that Tim invented was strongly based on SGML (Standard Generalized Mark-up Language), an internationally agreed upon method for marking up text into structural units such as paragraphs, headings, list items and so on. SGML could be implemented on any machine. The idea was that the language was independent of the formatter (the browser or other viewing software) which actually displayed the text on the screen. The use of pairs of tags such as <TITLE> and </TITLE> is taken directly from SGML, which does exactly the same. The SGML elements used in Tim's HTML included P (paragraph); H1 through H6 (heading level 1 through heading level 6); OL (ordered lists); UL (unordered lists); LI (list items) and various others. What SGML does not include, of course, are hypertext links: the idea of using the anchor element with the HREF attribute was purely Tim's invention, as was the now-famous `www.name.name' format for addressing machines on the Web.

Basing HTML on SGML was a brilliant idea: other people would have invented their own language from scratch but this might have been much less reliable, as well as less acceptable to the rest of the Internet community. Certainly the simplicity of HTML, and the use of the anchor element A for creating hypertext links, was what made Tim's invention so useful.

September 1991: Open discussion about HTML across the Internet begins
Far from keeping his ideas private, Tim made every attempt to discuss them openly online across the Internet. Coming from a research background, this was quite a natural thing to do. In September 1991, the WWW-talk mailing list was started, a kind of electronic discussion group in which enthusiasts could exchange ideas and gossip. By 1992, a handful of other academics and computer researchers were showing interest. Dave Raggett from Hewlett-Packard's Labs in Bristol, England, was one of these early enthusiasts, and, following electronic discussion, Dave visited Tim in 1992.

Here, in Tim's tiny room in the bowels of the sprawling buildings of CERN, the two engineers further considered how HTML might be taken from its current beginnings and shaped into something more appropriate for mass consumption. Trying to anticipate the kind of features that users really would like, Dave looked through magazines, newspapers and other printed media to get an idea of what sort of HTML features would be important when that same information was published online. Upon return to England, Dave sat down at his keyboard and resolutely composed HTML+, a richer version of the original HTML.

Late 1992: NCSA is intrigued by the idea of the Web
Meanwhile on the other side of the world, Tim's ideas had caught the eye of Joseph Hardin and Dave Thompson, both of the National Center for Supercomputer Applications, a research institute at the University of Illinois at Champaign-Urbana. They managed to connect to the computer at CERN and download copies of two free Web browsers. Realizing the importance of what they saw, NCSA decided to develop a browser of their own to be called Mosaic. Among the programmers in the NCSA team were Marc Andreessen - who later made his millions by selling Web products - and the brilliant programmer Eric Bina - who also became rich, courtesy of the Web. Eric Bina was a kind of software genius who reputedly could stay up three nights in succession, typing in a reverie of hacking at his computer.

December 1992: Marc Andreessen makes a brief appearance on WWW- talk
Early Web enthusiasts exchanged ideas and gossip over an electronic discussion group called WWW-talk. This was where Dave Raggett, Tim Berners-Lee, Dan Connolly and others debated how images (photographs, diagrams, illustrations and so on) should be inserted into HTML documents. Not everyone agreed upon the way that the relevant tag should be implemented, or even what that tag should be called. Suddenly, Marc Andreessen appeared on WWW-talk and, without further to-do, introduced an idea for the IMG tag by the Mosaic team.

It was quite plain that the others were not altogether keen on the design of IMG, but Andreessen was not easily redirected. The IMG tag was implemented in the form suggested by the Mosaic team on its browser and remains to this day firmly implanted in HTML. This was much to the chagrin of supporters back in academia who invented several alternatives to IMG in the years to come. Now, with the coming of HTML 4, the OBJECT tag potentially replaces IMG, but this is, of course, some years later.

March 1993: Lou Montulli releases the Lynx browser version 2.0a
Lou Montulli was one of the first people to write a text-based browser, Lynx. The Lynx browser was a text-based browser for terminals and for computers that used DOS without Windows. Lou Montulli was later recruited to work with Netscape Communications Corp., but nonetheless remained partially loyal to the idea of developing HTML as an open standard, proving a real asset to the HTML working group and the HTML Editorial Board in years to come. Lou's enthusiasm for good, expensive wine, and his knowledge of excellent restaurants in the Silicon Valley area were to make the standardization of HTML a much more pleasurable process.

Early 1993: Dave Raggett begins to write his own browser
While Eric Bina and the NCSA Mosaic gang were hard at it hacking through the night, Dave Raggett of Hewlett-Packard Labs in Bristol was working part-time on his Arena browser, on which he hoped to demonstrate all sorts of newly invented features for HTML.

April 1993: The Mosaic browser is released
In April 1993, version 1 of the Mosaic browser was released for Sun Microsystems Inc.'s workstation, a computer used in software development running the UNIX operating system. Mosaic extended the features specified by Tim Berners-Lee; for example, it added images, nested lists and fill-out forms. Academics and software engineers later would argue that many of these extensions were very much ad hoc and not properly designed.

Late 1993: Large companies underestimate the importance of the Web
Dave Raggett's work on the Arena browser was slow because he had to develop much of it single-handedly: no money was available to pay for a team of developers. This was because Hewlett-Packard, in common with many other large computer companies, was quite unconvinced that the Internet would be a success; indeed, the need for a global hypertext system simply passed them by. For many large corporations, the question of whether or not any money could be made from the Web was unclear from the outset.

There was also a misconception that the Internet was mostly for academics. In some companies, senior management was assured that the telephone companies would provide the technology for global communications of this sort, anyway. The result was that individuals working in research labs in the commercial sector were unable to devote much time to Web development. This was a bitter disappointment to some researchers, who gratefully would have committed nearly every waking moment toward shaping what they envisioned would be the communications system of the future.

Dave Raggett, realizing that there were not enough working hours left for him to succeed at what he felt was an immensely important task, continued writing his browser at home. There he would sit at a large computer that occupied a fair portion of the dining room table, sharing its slightly sticky surface with paper, crayons, Lego bricks and bits of half-eaten cookies left by the children. Dave also used the browser to show text flow around images, forms and other aspects of HTML at the First WWW Conference in Geneva in 1994. The Arena browser was later used for development work at CERN.

May 1994: NCSA assigns commercial rights for Mosaic browser to Spyglass, Inc.
In May 1994, Spyglass, Inc. signed a multi-million dollar licensing agreement with NCSA to distribute a commercially enhanced version of Mosaic. In August of that same year, the University of Illinois at Champaign-Urbana, the home of NCSA, assigned all future commercial rights for NCSA Mosaic to Spyglass.

May 1994: The first World Wide Web conference is held in Geneva, with HTML+ on show
Although Marc Andreessen and Jim Clark had commercial interests in mind, the rest of the World Wide Web community had quite a different attitude: they saw themselves as joint creators of a wonderful new technology, which certainly would benefit the world. They were jiggling with excitement. Even quiet and retiring academics became animated in discussion, and many seemed evangelical about their new-found god of the Web.

At the first World Wide Web conference organized by CERN in May 1994, all was merry with 380 attendees - who mostly were from Europe but also included many from the United States. You might have thought that Marc Andreessen, Jim Clark and Eric Bina surely would be there, but they were not. For the most part, participants were from the academic community, from institutions such as the World Meteorological Organization, the International Center for Theoretical Physics, the University of Iceland and so on. Later conferences had much more of a commercial feel, but this one was for technical enthusiasts who instinctively knew that this was the start of something big.
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At the World Wide Web conference in Geneva. Left to right: Joseph Hardin from NCSA, Robert Cailliau from CERN, Tim Berners-Lee from CERN and Dan Connolly (of HTML 2 fame) then working for Hal software.

During the course of that week, awards were presented for notable achievements on the Web; these awards were given to Marc Andreessen, Lou Montulli, Eric Bina, Rob Hartill and Kevin Hughes. Dan Connolly, who proceeded to define HTML 2, gave a slide presentation entitled Interoperability: Why Everyone Wins, which explained why it was important that the Web operated with a proper HTML specification. Strange to think that at least three of the people who received awards at the conference were later to fly in the face of Dan's idea that adopting a cross-company uniform standard for HTML was essential.

Dave Raggett had been working on some new HTML ideas, which he called HTML+. At the conference it was agreed that the work on HTML+ should be carried forward to lead to the development of an HTML 3 standard. Dave Raggett, together with CERN, developed Arena further as a proof-of-concept browser for this work. Using Arena, Dave Raggett, Henrik Frystyk Nielsen, Håkon Lie and others demonstrated text flow around a figure with captions, resizable tables, image backgrounds, math and other features.
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A panel discussion at the Geneva conference. Kevin Altis from Intel, Dave Raggett from HP Labs, Rick `Channing' Rodgers from the National Library of Medicine.

The conference ended with a glorious evening cruise on board a paddle steamer around Lake Geneva with Wolfgang and the Werewolves providing Jazz accompaniment.

September 1994: The Internet Engineering Task Force (IETF) sets up an HTML working group
In early 1994, an Internet Engineering Task Force working group was set up to deal with HTML.

he Internet Engineering Task Force is the international standards and development body of the Internet and is a large, open community of network designers, operators, vendors and researchers concerned with the evolution and smooth operation of the Internet architecture. The technical work of the IETF is done in working groups, which are organized by topic into several areas; for example, security, network routing, and applications. The IETF is, in general, part of a culture that sees the Internet as belonging to The People. This was even more so in the early days of the Web.

he feelings of the good `ole days of early Web development are captured in the song, The Net Flag, which can be found `somewhere on the Internet'. The first verse runs as follows:

The people's web is deepest red,
And oft it's killed our routers dead.
But ere the bugs grew ten days old,
The patches fixed the broken code.

So raise the open standard high
Within its codes we'll live or die
Though cowards flinch and Bill Gates sneers
We'll keep the net flag flying here.

In keeping with normal IETF practices, the HTML working group was open to anyone in the engineering community: any interested computer scientist could potentially become a member and, once on its mailing list, could take part in email debate. The HTML working group met approximately three times a year, during which time they would enjoy a good haggle about HTML features present and future, be pleasantly suffused with coffee and beer, striding about plush hotel lobbies sporting pony tails, T-shirts and jeans without the slightest care.

July 1994: HTML specification for HTML 2 is released
During 1993 and early 1994, lots of browsers had added their own bits to HTML; the language was becoming ill-defined. In an effort to make sense of the chaos, Dan Connolly and colleagues collected all the HTML tags that were widely used and collated them into a draft document that defined the breadth of what Tim Berners-Lee called HTML 2. The draft was then circulated through the Internet community for comment. With the patience of a saint, Dan took into account numerous suggestions from HTML enthusiasts far and wide, ensuring that all would be happy with the eventual HTML 2 definition. He also wrote a Document Type Definition for HTML 2, a kind of mathematically precise description of the language.

November 1994: Netscape is formed
During 1993, Marc Andreessen apparently felt increasingly irritated at simply being on the Mosaic project rather than in charge of it. Upon graduating, he decided to leave NCSA and head for California where he met Jim Clark, who was already well known in Silicon Valley and who had money to invest. Together they formed Mosaic Communications, which then became Netscape Communications Corp. in November, 1994. What they planned to do was create and market their very own browser.

The browser they designed was immensely successful - so much so in fact, that for some time to come, many users would mistakenly think that Netscape invented the Web. Netscape did its best to make sure that even those who were relying on a low-bandwidth connection - that is, even those who only had a modem-link from a home personal computer - were able to access the Web effectively. This was greatly to the company's credit.

Following a predictable path, Netscape began inventing its own HTML tags as it pleased without first openly discussing them with the Web community. Netscape rarely made an appearance at the big International WWW conferences, but it seemed to be driving the HTML standard. It was a curious situation, and one that the inner core of the HTML community felt they must redress.

Late 1994: The World Wide Web Consortium forms
The World Wide Web Consortium was formed in late 1994 to fulfill the potential of the Web through the development of open standards. They had a strong interest in HTML. Just as an orchestra insists on the best musicians, so the consortium recruited many of the best-known names in the Web community. Headed up by Tim Berners-Lee, here are just some of the players in the band today (1997):
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Members of the World Wide Web Consortium at the MIT site. From left to right are Henrick Frystyk Neilsen, Anselm Baird-Smith, Jay Sekora, Rohit Khare, Dan Connolly, Jim Gettys, Tim Berners-Lee, Susan Hardy, Jim Miller, Dave Raggett, Tom Greene, Arthur Secret, Karen MacArthur.

Dave Raggett on HTML; from the United Kingdom.

Arnaud le Hors on HTML; from France.

Dan Connolly on HTML; from the United States.

Henrik Frystyk Nielsen on HTTP and on enabling the Web to go faster; from Denmark.

Håkon Lie on style sheets; from Norway. He is located in France, working at INRIA.

Bert Bos on style sheets and layout; from the Netherlands.

Jim Miller on investigating technologies that could be used in rating the content of Web pages; from the United States.

Chris Lilley on style sheets and font support; from the United Kingdom.

The W3 Consortium is based in part at the Laboratory of Computer Science at Massachusetts' Institute of Technology in Cambridge, Massachusetts, in the United States; and in part at INRIA, the Institut National de Recherche en Informatique et en Automatique, a French governmental research institute. The W3 Consortium is also located in part at Keio University in Japan. You can look at the Consortium's Web pages on `www.w3.org'.

The consortium is sponsored by a number of companies that directly benefit from its work on standards and other technology for the Web. The member companies include Digital Equipment Corp.; Hewlett-Packard Co.; IBM Corp.; Microsoft Corp.; Netscape Communications Corp.; and Sun Microsystems Inc., among many others.

Through 1995: HTML is extended with many new tags
During 1995, all kinds of new HTML tags emerged. Some, like the BGCOLOR attribute of the BODY element and FONT FACE, which control stylistic aspects of a document, found themselves in the black books of the academic engineering community. `You're not supposed to be able to do things like that in HTML,' they would protest. It was their belief that such things as text color, background texture, font size and font face were definitely outside the scope of a language when their only intent was to specify how a document would be organized.

March 1995: HTML 3 is published as an Internet Draft
Dave Raggett had been working for some time on his new ideas for HTML, and at last he formalized them in a document published as an Internet Draft in March, 1995. All manner of HTML features were covered. A new tag for inserting images called FIG was introduced, which Dave hoped would supersede IMG, as well as a whole gambit of features for marking up math and scientific documents. Dave dealt with HTML tables and tabs, footnotes and forms. He also added support for style sheets by including a STYLE tag and a CLASS attribute. The latter was to be available on every element to encourage authors to give HTML elements styles, much as you do in desktop publishing.

Although the HTML 3 draft was very well received, it was somewhat difficult to get it ratified by the IETF. The belief was that the draft was too large and too full of new proposals. To get consensus on a draft 150 pages long and about which everyone wanted to voice an opinion was optimistic - to say the least. In the end, Dave and the inner circle of the HTML community decided to call it a day.

Of course, browser writers were very keen on supporting HTML 3 - in theory. Inevitably, each browser writer chose to implement a different subset of HTML 3's features as they were so inclined, and then proudly proclaimed to support the standard. The confusion was mind-boggling, especially as browsers even came out with extensions to HTML 3, implying to the ordinary gent that normal HTML 3 was, of course, already supported. Was there an official HTML 3 standard or not? The truth was that there was not, but reading the computer press you might never have known the difference.

March 1995: A furor over the HTML Tables specification
Dave Raggett's HTML 3 draft had tackled the tabular organization of information in HTML. Arguments over this aspect of the language had continued for some time, but now it was time to really get going. At the 32nd meeting of the IETF in Danvers, Massachusetts, Dave found a group from the SGML brethren who were up in arms over part of the tables specification because it contradicted the CALS table model. Groups such as the US Navy use the CALS table model in complex documentation. After long negotiation, Dave managed to placate the CALS table delegates and altered the draft to suit their needs. HTML tables, which were not in HTML originally, finally surfaced from the HTML 3 draft to appear in HTML 3.2. They continue to be used extensively for the purpose of providing a layout grid for organizing pictures and text on the screen.

August 1995: Microsoft's Internet Explorer browser comes out
Version 1.0 of Microsoft Corp.'s Internet Explorer browser was announced. This browser was eventually to compete with Netscape's browser, and to evolve its own HTML features. To a certain extent, Microsoft built its business on the Web by extending HTML features. The ActiveX feature made Microsoft's browser unique, and Netscape developed a plug-in called Ncompass to handle ActiveX. This whole idea whereby one browser experiments with an extension to HTML only to find others adding support to keep even, continues to the present.

In November 1995, Microsoft's Internet Explorer version 2.0 arrived for its Windows NT and Windows 95 operating systems.

September 1995: Netscape submits a proposal for frames
By this time, Netscape submitted a proposal for frames, which involved the screen being divided into independent, scrollable areas. The proposal was implemented on Netscape's Navigator browser before anyone really had time to comment on it, but nobody was surprised.

November 1995: The HTML working group runs into problems
The HTML working group was an excellent idea in theory, but in practice things did not go quite as expected. With the immense popularity of the Web, the HTML working group grew larger and larger, and the volume of associated email soared exponentially. Imagine one hundred people trying to design a house. `I want the windows to be double-glazed,' says one. `Yes, but shouldn't we make them smaller, while we're at it,' questions another. Still others chime in: `What material do you propose for the frames - I'm not having them in plastic, that's for sure'; `I suggest that we don't have windows, as such, but include small, circular port-holes on the Southern elevation...' and so on.

You get the idea. The HTML working group emailed each other in a frenzy of electronic activity. In the end, its members became so snowed under with email that no time was left for programming. For software engineers, this was a sorry state of affairs, indeed: `I came back after just three days away to find over 2000 messages waiting,' was the unhappy lament of the HTML enthusiast.

Anyway, the HTML working group still was losing ground to the browser vendors. The group was notably slow in coming to a consensus on a given HTML feature, and commercial organizations were hardly going to sit around having tea, pleasantly conversing on the weather whilst waiting for the results of debates. And they did not.

November 1995: Vendors unite to form a new group dedicated to developing an HTML standard
In November, 1995 Dave Raggett called together representatives of the browser companies and suggested they meet as a small group dedicated to standardizing HTML. Imagine his surprise when it worked! Lou Montulli from Netscape, Charlie Kindel from Microsoft, Eric Sink from Spyglass, Wayne Gramlich from Sun Microsystems, Dave Raggett, Tim Berners-Lee and Dan Connolly from the W3 Consortium, and Jonathan Hirschman from Pathfinder convened near Chicago and made quick and effective decisions about HTML.

November 1995: Style sheets for HTML documents begin to take shape
Bert Bos, Håkon Lie, Dave Raggett, Chris Lilley and others from the World Wide Web Consortium and others met in Versailles near Paris to discuss the deployment of Cascading Style Sheets. The name Cascading Style Sheets implies that more than one style sheet can interact to produce the final look of the document. Using a special language, the CSS group advocated that everyone would soon be able to write simple styles for HTML, as one would do in Microsoft Word and other desktop publishing software packages. The SGML contingent, who preferred a LISP-like language called DSSSL - it rhymes with whistle - seemed out of the race when Microsoft promised to implement CSS on its Internet Explorer browser.

November 1995: Internationalization of HTML Internet Draft
Gavin Nicol, Gavin Adams and others presented a long paper on the internationalization of the Web. Their idea was to extend the capabilities of HTML 2, primarily by removing the restriction on the character set used. This would mean that HTML could be used to mark up languages other than those that use the Latin-1 character set to include a wider variety of alphabets and character sets, such as those that read from right to left.

December 1995: The HTML working group is dismantled
Since the IETF HTML working group was having difficulties coming to consensus swiftly enough to cope with such a fast-evolving standard, it was eventually dismantled.

February 1996: The HTML ERB is formed
Following the success of the November, 1995 meeting, the World Wide Web Consortium formed the HTML Editorial Review Board to help with the standardization process. This board consisted of representatives from IBM, Microsoft, Netscape, Novell, Softquad and the W3 Consortium, and did its business via telephone conference and email exchanges, meeting approximately once every three months. Its aim was to collaborate and agree upon a common standard for HTML, thus putting an end to the era when browsers each implemented a different subset of the language. The bad fairy of incompatibility was to be banished from the HTML kingdom forever, or one could hope so, perhaps.

Dan Connolly of the W3 Consortium, also author of HTML 2, deftly accomplished the feat of chairing what could be quite a raucous meeting of the clans. Dan managed to make sure that all representatives had their say and listened to each other's point of view in an orderly manner. A strong chair was absolutely essential in these meetings.

In preparation for an ERB meeting, specifications describing new aspects of HTML were made electronically available for ERB members to read. Then, at the meeting itself, the proponent explained some of the rationale behind the specification, and then dearly hoped that all who were present also concurred that the encapsulated ideas were sound. Questions such as, `should a particular feature be included, or should we kick it out,' would be considered. Each representative would air his point of view. If all went well, the specification might eventually see daylight and become a standard. At the time of writing, the next HTML standard, code-named Cougar, has begun its long journey in this direction.

The BLINK tag was ousted in an HTML ERB meeting. Netscape would only abolish it if Microsoft agreed to get rid of MARQUEE; the deal was struck and both tags disappeared. Both of these extensions have always been considered slightly goofy by all parties. Many tough decisions were to be made about the OBJECT specification. Out of a chaos of several different tags - EMBED, APP, APPLET, DYNSRC and so on - all associated with embedding different types of information in HTML documents, a single OBJECT tag was chosen in April, 1996. This OBJECT tag becomes part of the HTML standard, but not until 1997.

April 1996: The W3 Consortium working draft on Scripting comes out
Based on an initial draft by Charlie Kindel, and, in turn, derived from Netscape's extensions for JavaScript, a W3C working draft on the subject of Scripting was written by Dave Raggett. In one form or another, this draft should eventually become part of standard HTML.

July 1996: Microsoft seems more interested than first imagined in open standards
In April 1996, Microsoft's Internet Explorer became available for Macintosh and Windows 3.1 systems.

Thomas Reardon had been excited by the Web even at the second WWW conference held in Darmstadt, Germany in 1995. One year later, he seemed very interested in the standardization process and apparently wanted Microsoft to do things the right way with the W3C and with the IETF. Traditionally, developers are somewhat disparaging about Microsoft, so this was an interesting turn of events. It should be said that Microsoft did, of course, invent tags of their own, just as did Netscape. These included the remarkable MARQUEE tag that caused great mirth among the more academic HTML community. The MARQUEE tag made text dance about all over the screen - not exactly a feature you would expect from a serious language concerned with structural mark-up such as paragraphs, headings and lists.

The worry that a massive introduction of proprietary products would kill the Web continued. Netscape acknowledged that vendors needed to push ahead of the standards process and innovate. They pointed out that, if users like a particular Netscape innovation, then the market would drive it to become a de facto standard. This seemed quite true at the time and, indeed, Netscape has innovated on top of that standard again. It's precisely this sequence of events that Dave Raggett and the World Wide Web Consortium were trying to avoid.

December 1996: Work on `Cougar' is begun
The HTML ERB became the HTML Working Group and began to work on `Cougar', the next version of HTML with completion late Spring, 1997, eventually to become HTML 4. With all sorts of innovations for the disabled and support for international languages, as well as providing style sheet support, extensions to forms, scripting and much more, HTML 4 breaks away from the simplicity and charm of HTML of earlier years!
Публикувано изображение
Dave Raggett, co-editor of the HTML 4 specification, at work composing at the keyboard at his home in Boston.

January 1997: HTML 3.2 is ready
Success! In January 1997, the W3 Consortium formally endorsed HTML 3.2 as an HTML cross-industry specification. HTML 3.2 had been reviewed by all member organizations, including major browser vendors such as Netscape and Microsoft. This meant that the specification was now stable and approved of by most Web players. By providing a neutral forum, the W3 Consortium had successfully obtained agreement upon a standard version of HTML. There was great rejoicing, indeed. HTML 3.2 took the existing IETF HTML 2 standard and incorporated features from HTML+ and HTML 3. HTML 3.2 included tables, applets, text flow around images, subscripts and superscripts.

One might well ask why HTML 3.2 was called HTML 3.2 and not, let's say, HTML 3.1 or HTML 3.5. The version number is open to discussion just as much as is any other aspect of HTML. The version number is often one of the last details to be decided.

Spring 1998: Cougar has now fully materialized as HTML 4.0 and is a W3C Proposed Recommendation. But do the major browsers implement HTML 4.0, you wonder? As usual in the computer industry, there is no simple answer. Certainly things are heading in that direction. Neither Netscape's or Microsofts browser completely implements style sheets in the way specified, which is a pity, but no doubt they will make amends. There are a number of pecularities in the way that OBJECT works but we very much hope that this will also eventually be implemented in a more consistent manner.

Какво трябва да знаеме?

Когато решите да започнете даден уеб сайт, трябва да го обмислите добре. За да изглежда страницата добре трябва да спазвате няколко изисквания:
И така, първо трябва да решите към кого ще бъде насочена страницата (имам предвид посетителя). Така ще можете по - лесно да определите графичния дизайн и въобще стилът на цялата страница.

Цветова гама
Трябва също да съобразите цветовата гама на страницата. Няма да ви хареса, предполагам, една прекалено шарена страница в която всички цветове от дъгата са в нея. Използвайте цветове които си подхождат един с друг.

Един според мен доста важен момент в начало на изграждането на web страница. Какво се разбира под структуриране. Всички знаете какво представлява структурата на компютъра. Подредена по фолдъри и всеки с някакво наименование. Това трябва да направите и Вие, когато започнете да създавате страница - да направите директории за страниците от които ще се състои Вашият web сайт. Направете ги така, че да Ви бъдат удобни за работа - не да се чудите след като направите страницата кое за какво беше...Например в главния фолдър, където ще бъде страницата, да има само един index.html, която да води към останалите добавени страници. Това разбира се не е задължително. Останалите страници ги сложете във фолдъри заедно с всички файлове които са нужни на добавената страница (картинки, js файлове и т.н.). Ако вашата страница е доста голяма по обем е добре да поставите всички картинки свързани с нея в един общ фолдър. Така няма да ви се пречкат.

Съдържанието е също важен момент в създаването на web страница. От него се определя и цялостният вид на web-а. Според него ще определите как да изглежда графичния дизаин на страницата. Ако в страницата ви има бизнес информация няма да е добре да се слагат анимирани картинки с пресмивателен контекст...Добре ще е, когато определите съдържанието на страницата тогава да решите от колко добавени страници ще е тя. Лично аз не обичам да отида на страницата за контакти на някого и да видя един е-mail

Навигацията в web страницата е много важна. Така вие позволявате на потребителя да знае във всеки един момент къде се намира и как да продължи или пък да се върне назад. Често ми се е случвало да се загубвам в страници, което ме е дразнило много. Дайте на клиента (потребителя) пълна яснота по този въпрос, защото е изчислено че човек стои в web страница не - повече от 10 секунди, и ако не го привлечете с нещо или пък се загуби - той просто ще си тръгне

Правилни означения
Когато започнете вече да правите самата страница ще ви е необходимо да знаете някои основни наименования и означения в sourc-а на страницата. Тези означения можете да видите тук. Има още много неща които ще са ви необходими да знаете, когато започвате да правите web страница, но засега това Ви стига. Най - добре е когато сам човек разбере какво му е нужно и къде е сбъркал. Нещата по - горе според мен са най - важни!

Как става цялата работа?

HTML (hiper text markup language) е език за описание структурата на страницата базиран на обикновен ASCII текст в който са вмъкнати специални етикети, заградени в триъгални скоби(<пример>). В етикетите няма разлика между главни и малки букви. Маркирането на текст с етикет става с името на етикета в триъгалните скоби, а за край на маркиране се използва наклонена черта плюс името на етикета
Етикетите в html единствено уточняват структурата на документа - какво представлява даден елемент, а не как изглежда на екрана.
Всеки html документ започва и завършва с етикетите
Между тях са разположени секциите на заглавната част <head>...</head> и <body>...</body>
Между етикетa <head> се разполага името на документа което пък се поставя между етикета <title>
След етикета <head> се поставя и самото тяло на web страницата между етикетите <body>

Етикетът <body> отбелязва тялото на даден html документ или накратко казано - действителното съдържание на страницата.
В него се съдържа информацията за всеки елемент от страницата. Определяте цвета на badground-a, задавате формат и вид на текст, поставяте таблици, рамки и въобще всичко което се ползва за да изглежда вашата страница по подобаващ начин.

Етикетът <body> се характеризира с няколко основни параметъра.

alink - Определя цвета на текста за хипервръзка, която е избрана

bgcolor - Определя цвета на страницата

link - определя цвета на текста за хипервръзка, която не е била избрана

text - определя цвета на нормалния текст

vlink - определя цвета на текст за хипервръзка, която е била избрана

bgproperties - когато стойноста е "fixed", изображението указано от background не се скролира

leftmargin - Определя броят на пикселите с които да бъде изместена страницата спрямо левия край на прозореца на браузъра

topmargin - Определя броят на пикселите с които да бъде изместена страницата спрямо горния край на прозореца на браузъра

background - Определяне на графично изображение което ще се използва за фон на страницата.(Трябва да притежава URL на графичното изображение)

______________________________Етикети за обработка на текст:______________________________

В тялото на html страницата <body>...</body> можете да използвате множество етикети с помоща на които да форматирате текста и по тозиначин да укажете на браузъра как да го изобрази.

Тези етикети биват два вида:

за определяне вида на текста
за определяне потока на текста
Това са етикети за определяне вида на текста:

<b>текст</b> - Удебелява заградения текст
<big>текст</big> - Увеличава големината на буквите на заградения текст(?)
<blink>текст</blink> - Кара заградения текст да мига(?)
<cite>текст<cite> - Форматира заградения текст като цитат
<code>текст</code> - Форматра заградения текст като фрагмент от програма
<u>текст</u> - Подчертава заградения текст
<i>текст</i> - Прави заградения текст курсив

<small>текст</small> - Намалява големината на буквите на заградения текст
<strike>текст</strike> - Рисува линия посредата на буквите
<strong>текст</strong> - Подчертава силно заградения текст(удебелява го)
<tt>текст</tt> - При изобразяването на заградения текст сеизползва шрифт с фиксирана ширина
<sub>текст</sub> и <sup>текст</sup> - Форматира заградения текст като долен - горен индекс
Ето и етикети за определяне потока на текста:

<address>текст</address> - Форматира адрес
<blackquote>текст</blackquote> - Форматира цитат
<br> - Стоп линия
<center>текст</center> - Центрира зафрадения текст
<font>текст</font> - Установявя шрифт, цвят и големина на заградения текст

<hn>текст<hn> - Показва че заградения текст е заглавие от ниво n, където n е число от 1 до 6

<hr> - Слага хоризонтална линия
<img> - Слага изображение в html страницата Може да бъде използван в комбинация с етикета.
<p> - Обозначава нов параграф

______________________________Етикети за цветове:______________________________

Когато решите вече в какъв стил ще ви е страницата, ще е добра да знаете и някои от основните правила за определяне на цвят в web. Има два общовъзприети стандарта за определяне на цветовете
- използване на английски думи за описание на цветовете
- използване на шестнайсетичен код за определяне на цветове

Ето и пример за използване на тези кодове в етикет <body>.

<body bgcolor="#FFFFFF" text="#000000" link="#000080" vlink="#808000" alink="#008000">

______________________________Етикети за таблици:______________________________

Таблиците са много важна част при правенето на web страници. В тях можете да слагате всичко - текст, картинки, java аплети, aktivеX контроли. С тях можете много лесно да позиционирате даден елемент от страницата ви в една мрежа, като използвате невидими ръбове.
Основните етикети са:
<table> и </table> - това е основната структора
Етикетите <tr> и </tr> отделя редовете
Етикетите <th> и </th> ограждат заглавието на таблицата
Етикетите <td> и </td> отделят отделните клетки

______________________________Етикети за рамки (фрейми):______________________________

Рамките (фрейми) са много удобен метод за направа на страници, в които искате част от страницата да се запази (статична) а друга да се променя динамично.
Един вид вашата страница като цяло е създадена от няколко добавени. Този метод за направа на web страници спомага и за олекотяване на страницата.

Зареждат се само страниците в които се съдържа същинската информация, а останалите са навигация и тем подобни - които по принцип искате да ги има постоянно.

Етикетите за създаване на фрейми е много елементарен
Наборът от рамки се съдържа между етикетите <frame>...</frame> и <frameset>...</frameset>

Има една подробност обаче, която не трябва да забравяте никога, когато използвате фрейми!!!
Ако в добавената страница (динамичната) има хипервръзка (линк) окажете задължително как да се зарежда страницата от този линк Възможносите са:
"_self" - в същият фреим
"_top" - ще зареди страницата в целия браузър
"_parent" - зарейда се в parent фрейма
"_blank" - ще отвори страницата в нов прозорец

Преди етикета за начина на отваряне трябва да има
Ако след линка нямя един от тези етикети страницата ще се отвори в "Main" прозореца

______________________________Mета тагове:______________________________

Мета таговете са нещо доста полезно и необходимо.
Те играят важна роля при индексирането на Вашата страница в търсещите машини.

Ето и пример, който трябва само да копирате и да сложите във вашата страница на необходимото място, като промените информацията.
Не забравяйте че това е информацията която ще Ви представи пред света и за това бъдете внимателни.

<TITLE> Заглавието на вашата страница</TITLE>
<META NAME="description" CONTENT="Кратко описание на страницата">
<META NAME="keywords" CONTENT="Тук напишете всички възможни думи за които се досетите, свързващи се с Вашата страница">

С какво става цялата работа?

Практически за да се създаде една интернет страница можете да използвате всеки текстови редактор. Notepad дори може да ви свърши страхотна работа ако сте професионалист и разбирате от WEB програмиране. Ако не сте такъв ви препоръчвам една от следните:
Macromedia Dreamweaver MX 2004 (Data.bg)
Macromedia Dreamweaver MX 2004 (FTLBG.com)
Microsoft Frontpage 98(Data.bg)
Също така една доста добра програма е Microsoft Office Publisher която можете да намерите във всеки office пакет на Microsoft.

Как да сложим анимации?

В интернет страниците са 2 вида - Gif анимации и Flash анимации.

Какво представлява GIF анимацията:

GIF анимацията представлява поредица от картинки които се сменят през определено време. Изключително елементарни за създаване. Ето пример за GIF анимация. Тя се прави с програми като Ulead Gif Animator.
<IMG SRC="линка на картинката в интернет*">

Какво представлява Flash анимацията:
Flash анимацията вече е по-трудна но същевременно по-добра и интересна анимация. Такъв вид анимация има многобройни приложения. Прави се с програми като SwishMax.

<embed src="линка на flash анимацията в интернет*" />

Как да качим страницата си?

За качване на страница в интернет се използва upload функцията на някой български free сървъра. За да качвате са ви нужни настройките на съответния сървър и upload програма. Повечето сървъри си имат файлов манипулатор но почти навсякъде той има ограничения в големината на файловете. Total Commander, FlashFXP или CuteFTP са едни от програмите за качване в интернет.


Javascript-а представлява код който е предназначен за празнообразяване на сайта ви. Има изключително много такива кодове като се започне от часовници и се свърши до трептене на екрана и такива работи. За повече информация тук.

Такъв скрипт се слага като се копира самия код в HTML кода ви.

*Има 2 вида за слагане на картинка или анимация в сайта ви. Единия е с директен линк към картинката/анимацията а другия е да се създаде папка index_files в която да се сложат картинките и анимациите. При втория случай е нужно да сложите единтвено името на файла и той автоматично се намира.

10x на todos web

Status - wwwDotcoM

Потребителят е неактивен   daat 

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WoW доста текст

Потребителят е неактивен   lubvho 

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Доста тексо ама доста полезен!!!

Потребителят е неактивен   sisters 

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много полезна информация за начинаещти или желаешти да си имат страничка 8) (Y)(B)мога ли да те помоля да ми дадеш насока как ставаха тези неща ,че нещо съм ги позабравил -благодаря ти за помоща.

Потребителят е неактивен   sandh 

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jemhadar каза:

да има случайно някъде ръководство за flash mx на български
Тука ли трябваше да питаш? Защо не в Книги? Или в Програми? Или пък не направи нова тема?

За инфото отгоре: не съм го чел и не умирам от желание да го направя... незнам защо изобщо е повдигната тази тема като важна, но инфото освен някаква представа за създаването на езика (това предполагам, че пише там... съдя по малкото, което прочетох от него), но не виждам нищо полезно в сферата на уеб-програмирането... пък и поне някой да си беше направил труда да го преведе!!! Аз бих се навил, но просто нямам изгода от това... :)

Дано на някой му свърши работа това инфо...

Потребителят е неактивен   ircadmin 

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Ако найстина има такова рьководство и някой даде линк кьм него ще бьде много добре!

Потребителят е неактивен   gamble 

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ircadmin каза:

Ако найстина има такова рьководство и някой даде линк кьм него ще бьде много добре!


Потребителят е неактивен   sandh 

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gamble каза:

ircadmin каза:

Ако найстина има такова рьководство и някой даде линк кьм него ще бьде много добре!

Абе, хора! Вие не разбрахте ли, че тука не е мястото да питате за ръководство по Флаш!!! И без това никой няма да ви отговори!!! Питайте на друго място!!! :) :) :)

Потребителят е неактивен   archivator 

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Какво ти PHP?!? Там няма тагове ... :) Това са си стандартни HTML тагове :)

Потребителят е неактивен   nikyweb 

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Много е изчерпателен този текст! :) Страшно полезен е....

Потребителят е неактивен   plevennn 

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ot kolko vreme tursq ne67o podobno,koeto da e obqsneno na bg no bihte li obqsnili i koq programa da izpolzvam za suzdavane na web stranica s HTML pi6e7e na razbrax@mail.bg blagodarq predavritelno :):):)

Потребителят е неактивен   ingenious 

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Аз в тази тема за web програмиране нищо не намерих.

Потребителят е неактивен   sandh 

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ingenious каза:

Аз в тази тема за web програмиране нищо не намерих.
Има някакъв кратък урок как да направим проста html страница, но това го има и в други важни теми (другА важна тема :))... не е преведено, структурирано е така, че само като го видиш да ти се отще да четеш каквото и да било близките няколко седмици... според мен не е нещо особено, но... на който му се чете (на английски)... няма да му се отрази зле да си разнообрази вечерта с нещо такова... :)

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sandh каза:

Има някакъв кратък урок как да направим проста html страница, но това го има и в други важни теми (другА важна тема :))... не е преведено, структурирано е така, че само като го видиш да ти се отще да четеш каквото и да било близките няколко седмици... според мен не е нещо особено, но... на който му се чете (на английски)... няма да му се отрази зле да си разнообрази вечерта с нещо такова... :)

Не, аз казах, че за web програмиране нищо не вядях.

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martiniankov каза:

А как да сложа бутон в страницата - научих се да си слагам BACKGROUND , Заглавие , Картинка с линк - но немога да се науча да си слагам Текст, който като го щракна в/у него да ми излиза някоя статия от моя комп!!! Помагайте , благодаря ви !!!
Картинка с линк = бутон
Какво точно искаш? Бутон се прави така:
<input type="button" onClick="някакво действие">

Не разбирам какво точно искаш и затова немога да ти отговоря по-точно... обесни мъничко...

Потребителят е неактивен   sandh 

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martiniankov каза:

Ми цъкни картинката на моя подпис !!! Искам такива бутони (най-обикновенни).Просто да си цъкна на "Линк към нас" и да ми излезе "писаницата"(но не в отделен прозорец като на сайта)

Ти написа "някакво действие" - какво да сложа там : дай пример!!! Благодаря
Нещо не зацепвам... Не намерих бутон "Линк към нас" Само линк "Линк към нас". Какво е това "писаницата"?!?

А примера:
<input type="button" onClick="window.location='http://www.abv.bg'">
Това те препраща към www.abv.bg след натискане на бутона.

Още един пример:
<input type="button" onClick="window.alert('You clicked at me!')">
Това изкарва съобщение "You clicked at me!", когато кликнеш върху бутона... зависи какво искаш... аз нещо не мога да разбера какво искаш...

Потребителят е неактивен   sandh 

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martiniankov каза:

А ве пич искам да си направя следното:(много съм зле)

Първо да те питам къде да го пиша този бутон:

Значи когато отворя страницата ми от моя комп - искам едно тъпо бутонче, с което като цъкна върху него да ми изкарва това което съм писал

Искам да си направя бутон на страницата , просто е ?
КОЕ Е ТОВА, ДЕТО СИ ГО ПИСАЛ? Какво е? Някакъв друг файл ли? Бутон ти написах горе как се прави. Обесни кое искаш да отвориш с този бутон?!? Ако е друг html документ:


<input type="button" onClick="window.location='файл.html'">
Това червеното го замести с името на твоя файл.

Потребителят е неактивен   sandh 

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martiniankov каза:

Значи свалих си от един - два сайта 2-3 статии и искам да ги запиша на диск(не искам да ги разпространявам статийте, просто когато стана по-голям да се сещам за тях, да ми напомнят), но за да не са разхвърлени реших да си ги направя под формата на страница, тамън и аз да се науча.
И почнах - сложих си BACKGROUND , картинка и заглавие.
И сега искам да напиша под тея неща точно четери статий - и като цъкна върху тях да ми влиза в статията
Добре, хубаво. Онзи код отгоре не помага ли? Доколкото разбирам искаш да направиш линк към тези статии. Пробвай или онова горе или
<а href="статията_ти.html">Линк към статията</a>
и кажи какво забога не работи...

Потребителят е неактивен   sandh 

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martiniankov каза:

КАК се казваше : ЕВАЛА !!! етова исках!!!
Обикновен линк? :) Аз се чудя какво забога искаш да направиш... :) Айде успех с начинанието... :)

Потребителят е неактивен   sandh 

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martiniankov каза:

А ве можеш ли да ми помогнеш - защо като сложа линк към някой Microsoft WORD файл и като цъкна на Preview и цъкна на бутона не ми излиза инфото!!!
А ти как искаш да ти излезе? Ако даваш линкове към непознати за браузъра формати (.doc, . psd, .exe и т.н.) най-много ще ти се появи едно малко прозорче (поддържано от браузъра), което ще те пита дали искаш "да запишеш файла на твърдия диск"(SaveAs) или "да отвориш файла"(Open). Така ако файла е върдовски, той няма да може да се визуализира в браузъра и ще ти излеза това прозорче. Ако натиснеш "Open" файла ще се отвори в Word. Иначе самия браузър не разпознава *.doc формата... *.txt се разпознава в повечето случаи и *.pdf също и браузъра отваря направо самия файл, но не е сигурно...

Мене ако питаш... ааправи си го този върдовски файл на *.html файл и толкова.

П.П. - пускай нови теми за тая работа, не ме търси само тука, защото малко спамим във "важната тема" и може някой модератор да ни се ядоса. :) (не че много модератори влизат в тоя раздел :) )

П.П.П. - Това, което наричаш бутон се казва линк. Моля те не ме обърквай, защото виж за един прост линк какво изписахме отгоре... :)

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