js 弹出可拖动窗口

https://files.cnblogs.com/xsmhero/Scroll_Div.js

<script type="text-javascript">

Scroll_Div('my_menu1', document.all.menu1, document.all.menu1_title);
        var x = (document.body.clientWidth  - my_menu1.root.offsetWidth);
        var y = (document.body.clientHeight - my_menu1.root.offsetHeight) / 2;
        my_menu1.move(x, y);
        my_menu1.close();

</script>

<input type='button' value='保存策略' class='button' onclick='javascript:my_menu1.open();' />
<input type='button' value='查询策略' class='button' onclick='javascript:my_menu2.open();' />

<table id='menu1' width='50%' border='0' cellpadding='4' cellspacing='1' style='background-color:#666666;'>
  <tr><td id='menu1_title' style='100%; background-color:#009900; text-align:center;'>保存检索策略</td></tr>
  <tr><td style='background-color:#FFFFFF; text-align:center; height:150px; vertical-align:top;'>
    <table border="0" cellpadding="1" cellspacing="0">
      <tr><td>
        策略标题：<input type="text" name="queryTitle" value="" />
      </td></tr>
      <tr><td>
        <input type="button" class="button_style" value="保存" onclick="my_save()" />
        <input type="button" class="button_style" value="隐藏" onclick="my_menu1.close()" />
      </td></tr>
    </table>
  </td></tr>
</table>