Problem with jquery when i'm trying to remote

[eluser]Gerep[/eluser]
This is a piece of code:

Code:

$.ajax({
                type: 'POST',
                url: 'http://www.tecnologia1.com.br/inicio/newsletter/',
                data: 'email='+$('#email').val(),
                success: function(return){
                                       if(return)
                                              alert('done');
                                       else
                                              alert('error');
                }
                }

The data

Code:

data: 'email='+$('#email').val(),

I what I receive on my newsletter method like:

Code:

$this->input->post('email');