By adding this code to the top of your page you will drop a cookie on the client. One way to use this is to determine if a user has been to your site before. This cookie is set to expire on June 15 2005.
Now if you want the cookie to expire when they leave just dont give it an expiration like so:
<% Response.Cookies("Expertsforge")=1 %>
Heres how to read the cookie and use it to display a greeting:
<% If Request.Cookies("Expertsforge") = 1 Then greet = "Welcome Back To Expertsforge" Else greet = "Welcome To Expertsforge!" End If Response.Write greet Response.Cookies("Expertsforge")=1 Response.Cookies(Expertsforge").Expires="June 15, 2005" %>
Now you will note that I set the cookie AFTER I checked for it. This is because if we write the cookie before checking, it would always say Welcome Back.