Dear reader, thanks for participating in our online survey. As a first step we kindly ask you to watch the following video. After that, please fill in the online questionnaire which will take about 5-10 minutes to finish. Warning: fopen(counter.dat) [function.fopen]: failed to open stream: Permission denied in /var/www/html/survey__realnew/surveyadds/en/index.php on line 66 Warning: fputs(): supplied argument is not a valid stream resource in /var/www/html/survey__realnew/surveyadds/en/index.php on line 68 Warning: fclose(): supplied argument is not a valid stream resource in /var/www/html/survey__realnew/surveyadds/en/index.php on line 69 Now you have seen the video. Please click on the following link in order to get to the online survey. Thanks for your time. Link to the questionnaire