codeigniter - The form get submit without login and select fields -

this first post. developed site http://careerzap.com in codeigniter , found there auto posting in site. don't know how stop this. url can check issue http://www.careerzap.com/ask/question/128

as can see by: , category: blank set these mandatory. means username , login required, , category select box can choose category in question post.

you can post question here ...

please me have no idea how stop this..

thanks

nk