function Send_Feedback(){
    var form = $('feedback_form');
    var sbm_button = $('sbm_f_button');
    var div = $('feedback_status');
    var url = "feedback.php";
    
    
    
    new Ajax.Request(url, {
            parameters : form.serialize(true),
            onSuccess: function(transport){
                var response = eval('('+transport.responseText+')');
                if (response.success == 0){
                    div.update(response.msg);
                    sbm_button.disabled = false;
                }
                else{
                    div.update(response.msg); 
                }
                
            },
            onCreate: function() {
                sbm_button.disabled = true;
            }
    }
    
    
    )    
}