<% require 'cgi' # Require the CGI library
cgi = CGI.new() # New CGI object
username = cgi.param('username')
%><html><head><title>eRuby Test</title></head>
<body>
<h1>Testing eRuby</h1>
<% if username.empty? # Print out the form asking for the username %>
<form method="post">
Please enter your username: <input type="text" name="username"><br>
<input type="submit" value="Go">
</form>
<% else %>
Welcome <%= username %>!
<% end %>
</body>
</html>