function pollSubmit() {
                var str = $("form").serialize();


if($("#poll_form input:radio:checked").size()>0){		
                $.getJSON(web_url+"main/poll?"+str,{}, function(data, status) {
                        if (status=='success'){
                                $('#poll_form').html(data);
                        }else{
                                alert("ERROR");
                        }
                });
                $('#poll_form').empty().append('<div class="loading"><img src="'+base_url+'assets/i/ajax-loader.gif" alt="loading" /></div>');
        }

else{
alert(error);
}
}