急新手怎么用JS新建一个空的上拉框

急!新手求助如何用JS新建一个空的下拉框如题!新手求指导![解决办法]HTML codehead runatserverscrip

急!新手求助如何用JS新建一个空的下拉框
如题!新手求指导!

[解决办法]

HTML code
<head runat="server">       <script src="jquery.js" type="text/javascript"></script>      <title></title>      <style type="text/css">        </style>    <script type="text/javascript">        window.onload = function(){            document.getElementById('div-new-select').innerHTML =                 '<select id="new-select"></select>';        }    </script>   </head><body>    <span id="div-new-select"></span></body>