[jQuery] Form plugin throws "options.url.indexOf is not a function" error

[jQuery] Form plugin throws "options.url.indexOf is not a function" error


Hi
I am just starting to use jquery so have downloaded the latest
jquery.js version (v 1.2.1). I wanted to utilise form submission so
also grabbed the jquery.form.js
However it throws an error on line 209 jquery.form.js
"options.url.indexOf is not a function"
Can anyone help me to get this working please?
Cheers
Tom