item Change list to dropdown filter text filed on pos opensource php codeigniter

Hi there i just want to change item list to drop down item list with filter example i have 5 filed in sql factory name : article name: article number: colour ,item_id in this script its show all product but i want to drop down input filed like if i select factory name then all factory name show in on that filed then want to filter its all article name next filed like article name and when i select article name then it filter its all article number next filed then colour