if(!empty($sanpham) && !empty($mau)){
				$arr_sp[$sanpham['Sanpham']['id']]['Sanpham'] = $sanpham['Sanpham'];
				$arr_sp[$sanpham['Sanpham']['id']]['Bangmau'] = $mau['Bangmau'];
				$arr_sp[$sanpham['Sanpham']['id']]['Soluong'] = $data['Donhangchitiet']['soluong'];
				$this->Session->write('sanpham',$arr_sp);
			}