HtML<select>标签

<select id="selected" onchange="selectedchange()<span style="font-family: Arial, Helvetica, sans-serif;">"></span>  <option value ="volvo">Volvo</option>  <option value ="saab">Saab</option>  <option value="opel">Opel</option>  <option value="audi">Audi</option></select>

<script>function : selectedChange() {var obj = document.getElementById("selected");<pre name="code" class="javascript">var value = obj.value;<pre name="code" class="javascript">alert(value);<pre name="code" class="javascript">}</script>