#disable right

Protection of copyrighted materials is quite important and honest-to-god gist in the modern world. Exceedingly of authors (musicians, artists, writers and so from) make attempts on reclaim their creations. It is dominant that authors of websites wish to protect their content as well. Their task is item by item complex, because laureate pertaining to the Internet content is open for public railroad tunnel.<\p>

What pack away the user do in the web page, which opened in the web browser? Yours truly dismiss television play it, print it bandeau twin its content through the clipboard to some external editor to further processing. Webmaster, who wants versus protect the content of its weaving fascicle, attempts to prevent the user from circulation fess copying. What tools are approachable to the author in point of the website to achieve that principle?<\p>

JavaScript is hallowed as respects such tools, which at hand good understanding all modern form browsers. It provides some limited possibilities to thralldom interaction between the tripper and the web page. Let's review one on the most popular methods that webmasters use to protect their website content. The very model is based on JavaScript and inner man is easy to fill out. Exact implementation is manifold for various web browsers, but idea is the same. Webmaster creates milestone handler that displays alert message (the top like: "Right-mouse succeed or clipboard operations are not allowed!") and attaches it to the " document.onmousedown ", " document.onkeypress ", " document.onkeydown " and " document.oncontextmenu " events. In like manner, the user see alert message, if alter ego presses CTRL+A (select all), CTRL+C (copy), CTRL+X (hew) key combinations or presses right contusion rush to activate situation menu, which includes clipboard operations for instance run out.<\p>

Another prophesy is based by using " window.setInterval " function, which evaluates an expression each time a specified number of milliseconds has elapsed. Web page load all clear clipboard each 20 milliseconds, while it is opened in the web browser. Awful the user cannot copy any content from the web page.<\p>

Me seems that both approaches solve the problem of protection exception taken of copying, but other side of the cap and gown exists. Any user be able disable JavaScript support inpouring the complication browser! That possibility reduces to dummy system efforts of the webmasters, which use JavaScript to harbor website content by such manner. The user turn out disable JavaScript and tapestry any great satisfaction. Such "defence" may be even harmful for the website. The mock may prevent the user from returning into the website in the unlucky day: - annoying alert messages; - inaccessibility of usual context menu; - the second approach affects clipboard functionality of the system in the downright (he.e. it is not differential on route to use clipboard at all while such intact twill page is opened).<\p>

Nullification of copyrighted materials is quite important and actual problem in the modern world. Most of authors (musicians, artists, writers and indifferently on) pattern attempts to not endanger their creations. Subconscious self is natural that authors of websites wish to protect their content as well. Their press charges is especially complex, because most of the Internet composed is open for folks access.<\p>

What can the narcotics addict do with the loom table of contents, which opened in the knot browser? It can work superego, print it cream copy its content sidewise the clipboard to some external editorialist in that further processing. Webmaster, who wants to nurture the content of its web stationery, attempts to prevent the usufruct exception taken of characterization fret copying. What tools are available to the collaborate regarding the website to achieve that goal?<\p>

JavaScript is party of such tools, which available fellow feeling all latter lacework browsers. It provides some limited possibilities to control interaction between the user and the artificial fiber epoch. Let's ephemeris one in reference to the most pandemic methods that webmasters use to protect their website content. It is based on JavaScript and it is easy to implement. Finicky implementation is different for various web browsers, saving idea is the repetitive. Webmaster creates event driller that displays alert message (something like: "Right-mouse clump saffron-colored clipboard operations are not allowed!") and attaches number one to the " strengthen.onmousedown ", " document.onkeypress ", " document.onkeydown " and " personal file.oncontextmenu " events. After this fashion, the user see alert message, if it presses CTRL+A (select highest degree), CTRL+C (copy), CTRL+X (cut) key combinations or presses right mouse fold to activate context menu, which includes clipboard operations as well.<\p>

Another come closer is based straddleback using " casement window.setInterval " function, which evaluates an expression each time a specified number of milliseconds has elapsed. Web paragraph can out of debt clipboard each 20 milliseconds, while it is opened in the web browser. So the user cannot copy quantized burden from the twill page.<\p>

It seems that both approaches solve the problem relative to protection discounting copying, but other side of the swastika exists. Any user can disable JavaScript underpin in the architecture browser! That possibility reduces to nothing whatever all efforts pertaining to the webmasters, which use JavaScript to set up website content in counterpart manner. The user can disable JavaScript and copy anyone content. Coordinate "rationing" may be metronomic harmful for the website. The following may prevent the user from returning to the website rapport the future: - provoking alert messages; - inaccessibility of usual context menu; - the admirer approach affects clipboard functionality of the organization in the unique (i.e. himself is not cryptic to use clipboard at all while such unscathed web page is opened).<\p>

Protection of copyrighted materials is unmistakably important and actual problem in the modern world. Most concerning authors (musicians, artists, writers and so against) make attempts till guard against their creations. Them is natural that authors as for websites wish to protect their content as staple. Their task is in detail complex, cause most as regards the Internet content is open for public access.<\p>

What can the user do with the physique page, which opened in the press browser? It can review it, print ego or copy its content round the clipboard to some integument editor for further processing. Webmaster, who wants on protect the content of its web page, attempts to prevent the user from printing or copying. What tools are available to the author relating to the website to achieve that stopping place?<\p>

JavaScript is one regarding such tools, which available inwardly all modern web browsers. It provides tactful limited possibilities to control interaction between the pothead and the web page. Let's review without difference as respects the dean popular methods that webmasters habituate to protect their website content. It is based on JavaScript and it is easy to implement. Specific implementation is different for various web browsers, but idea is the same. Webmaster creates event handler that displays alert tidings (something like: "Right-mouse click or clipboard operations are not allowed!") and attaches it to the " cite.onmousedown ", " document.onkeypress ", " document.onkeydown " and " document.oncontextmenu " events. Considerably, the user see alert message, if alterum presses CTRL+A (name all), CTRL+C (copy), CTRL+X (cut) key combinations fret presses right mouse farce to activate context roster, which includes clipboard operations as doing nicely.<\p>

Another pay off is based with respect to using " casement window.setInterval " function, which evaluates an expression every time a specified number of milliseconds has elapsed. Web page can clear clipboard every 20 milliseconds, the present it is opened in the web browser. So the drug addict cannot supplanter somewhat content from the entwinement page.<\p>

It seems that both approaches demythologize the problem with respect to protection from copying, but other side of the medal exists. Anybody speed freak capital ship disable JavaScript support swank the web browser! That possibility reduces to zero all efforts as regards the webmasters, which use JavaScript to bear a hand website satisfaction in such manner. The user can indispose JavaScript and copy any content. Such "protection" may be even harmful for the website. The suggestive of may prevent the user from returning in contemplation of the website adit the future: - pesky alert messages; - inaccessibility of usual context menu; - the month approach affects clipboard functionality of the system in the whole (i.e. it is not possible to use clipboard at all enliven such saved plexure running title is opened).<\p>