如何动态改变列表框的值（增加或删除）
如题

------解决方案--------------------
<SELECT ID= "oSelect ">
<OPTION VALUE= "1 "> One </OPTION>
</SELECT>

<SCRIPT>
var oOption = document.createElement( "OPTION ");
oSelect.options.add(oOption);
oOption.innerText = "Two ";
oOption.value = "2 ";
</SCRIPT>