restrict post from another form

[esthera]

Is there anyway I can force my program to only accept posts from my form and not from anyone else trying to post in.

both pages are asp pages.

[glenngv]

Use Request.ServerVariables("HTTP_REFERER") to know which URL the request came from. Although it's not reliable as some firewalls/proxies are configured not to send referer information.

[esthera]

but as you mentioned some people block the referer -- I don't want to push away people who really want to fill out the form --

is there any other way?

[glenngv]

Use session variable.

http://www.codingforums.com/showthread.php?s=&threadid=27245

[esthera]

I tried that as well but as mentioned in the post it requires cookies to be enabled --
any other ideas?