Hi,
I want to make a site similiar to this.
http://hacker.sax777.com/
The way it works is, when there is proper text input in the field, it goes to the next page without the url changing, if its wrong, it displays an error message. I'd be very thankfull if someone would scrap up that small piece of code for me.
btw the link is russian, but just put 2 in the field and youll get how it works.