got any ideas on this?

[eluser]mistress_shiira[/eluser]
i have decided to do this application as an MVC.but theres something thats confusing me.hope you can give me ideas on how to proceed.

i have created a model,controller and a view for this particular exercise.
i want to load first a view file that contains the log in page so in my main controller i call it like this:

class main_control extends Controller{
function main_control(){
parent::Controller();
}
function index(){
$this->load->view('login_page');
}
}

now,im stuck.:d i dont know how to proceed.after i have load the view for the log in page.what i want to do is to verify the input of the user before they can log in.i dont know where to put that anymore.do i have to do another controller for that?pls help me..