I'm stumped . I need to write a script so that I can put my user's operating system on my web site. I will be really glad if you can help me. Also, I want to be able to display an alert message if the user doesn't fill out a certain element in my form (say name) and closes it.
. I need to write a script so that I can put my user's operating system on my web site. I will be really glad 
if you can help me. Also, I want to be able to display an alert message if the user doesn't fill out a certain element in my form (say name) and closes it.