CI and jQuery help

[eluser]Sceneshift[/eluser]
So I have a view setup like so:

Code:

<form name="catch_edit" method="POST" action="<?=site_url("catches/do_edit/")?>">
<input type="text" name="tbLocation" />
<input type="submit" name="submit" value="Find" />
</form>

And the catches/do_edit function of my controller looks like so:

Code:

function do_edit()
     {
        //$user_data = $this->User->check_user(true);
    //    $this->load->model('catch_data', 'Catch');
        //$results = $this->Catch->get_location(1); //get the record from the database
        
        echo "hi";    
    }

For some reason, when I submit the form, it just returns the entire pages source code, any ideas why this is happening? Sorry for being such an ignorant git.