Manipulating a form field with your URL?
 

Ok, say I have a signup form with a few text input fields and a submit button. Is it possible without any uber-fancy script or code to manipulate the input to one of those fields via the URL, to create a sort of referal link?

[Your URL]?id=your_value

Using PHP:

<INPUT TYPE=submit value=\"$id\">


Using Javascript something like:

would find the field value for id

then use a javascript write to the value into the form:

make sure you do some input validation while you're at it :)

I want to learn php :(