I don't know if there's a solution to my problem.
I have four reports on a web server and i want to open them in different windows. So I use the command web.show_document('My_URL', '_BLANK') four consecutive times to show four different reports. The first report, as i expected, opens in a new web browser. Therefore, three others open themselves in the same browser so i must use the BACK button of IE to see them all. Is there a way to open a different browser window for each report?