public function upload_file($field_name,$file_name,$folder,$allowed_exts,$max_size){

            $path = FCPATH."uploads".$folder;

            if(!is_dir($path)){ mkdir($path);  @file_put_contents($path."index.html","Forbidden"); }

            $config['upload_path'] = $path;
            $config['allowed_types'] = $allowed_exts;
            $config['max_size']    = $max_size;
            $config['file_name'] = $file_name;
            $config['overwrite'] = false;                                   
            $this->load->library('upload', $config);

            $uploaded = $this->upload->do_upload($field_name);        
            $upload_data =  $this->upload->data();

            if($upload_data["file_type"] && $upload_data["file_ext"] && $upload_data["client_name"]){
                
                $status = "success";    
                $file_size = $upload_data["file_size"];                
                $file_path = $upload_data["full_path"];

                $max_width = 500; // max width  
                $max_thumb = 250; // max thumb width  
                $file_path = $this->resize_me($file_path,$max_width,FALSE); // resize to max width
                $thumb_name = "thumb_".$upload_data["orig_name"]; // thumb name
                $thumb_url = $folder.$thumb_name; // thumb url
                $thumb_path = $this->resize_me($file_path,$max_thumb,FALSE,FALSE,TRUE); // resize thumb                   
                
            }


        }



        public function delete_upload($folder,$name){          
            @unlink(FCPATH.upload_base.$folder."/".$name);                                    
        }              




        public function resize_me($path,$width,$height,$percent = 100 ,$new = FALSE){

            if( ($width && $height) || ($width) || $percent){

                list($mywidth, $myheight, $type, $attr) = getimagesize($path);       

                $config['quality'] = "100%";   
                
                $cancel = FALSE;
                
                if($width > $mywidth){
                    $width = $mywidth;
                }
                    
                $config['width'] = $width;                                  
                                                
                $config['maintain_ratio'] = TRUE;
                $this->load->library('image_lib');                            
                // resize
                $config['image_library'] = 'gd2';
                $config['source_image'] = $path;
                                   
                if($new == TRUE){               
                    $filename = basename($path);
                    $config['new_image'] = $path = str_replace($filename,"thumb_".$filename,$path);
                }

                $this->image_lib->initialize($config);
                $this->image_lib->resize();
                // resize

                return $path;

            }

        }