<select> <option value="volvo">Volvo</option> <option value="saab">Saab</option> <option value="mercedes">Mercedes</option> <option value="audi">Audi</option> **<insert user value>** </select>
<input type="text" name="city" list="citynames"> <datalist id="citynames"> <option value="Boston"> <option value="Cambridge"> </datalist>