Re: HOWTO Q: detect browser's script enabled? - II

Thank you very much Arve. Ivo "Arve Bersvendsen" <arve.news@bersvendsen.com> wrote in message news:Xns91A5D9AB61022maddogonlineno@news.online.no... > Ivo Stoykov wrote in > news:20020129185128.39173.qmail@pb1.pair.com: > > > Hello again > > > > earlier today I asked about detecting whether javascript is > > enabled on the visitor's browser (bellow are the question and > > answeres received). > > <html> > <head> > </head> > <body> > <script type="text/javascript"> > > jsImg = new Image() > jsImg.src = "js-yes.gif"; > > </script> > <noscript> > <img src="js-no.gif" width="0" height="0" alt="" > /> > </noscript> > </body> > </html> > > > Your access logs for the images js-yes.gif, and js-no.gif will give > you stats over js/no-js. > > If you need something more sophisticated, you can replace js-yes.gif > and js-no.gif with serverside scripts that add the results to a > database. > > I have a sample php-script that gives you some of that functionality > without resorting to database: > > [jsenabled.php] > <?php > if ($js_=="y"){ > $file = "ay.txt"; > } else if ($js=="n"){ > $file = "an.txt"; > } > $fp = fopen($file,"a"); > fwrite($fp,"1"); > fclose($fp); > header("Content-type: image/gif"); > readfile("spacer.gif"); > ?> > > I then modify the html/js code to look like this: > > [somedocument.html] > <html> > <head> > </head> > <body> > <script type="text/javascript"> > > jsImg = new Image() > jsImg.src = "jsenabled.php?js=y"; > > </script> > <noscript> > <img src="jsenabled.php?js=n" width="0" height="0" > alt="" /> > </noscript> > </body> > </html> > > Please note that you'd want to purge the an.txt and ay.txt every once > in a while. > > -- > Arve <URL:http://www.bersvendsen.com/> > > Newsere mot X-No-Archive > > <URL:http://www.ibiblio.org/Dave/Dr-Fun/df9601/df960124.jpg>