JavaScript的createElement问题 - .NET技术 / ASP.NET

前台页面有这样的一句代码
<div id="mycontent">
  </div>
  <script type="text/javascript">
   
  var newdocument1=document.createElement('<%=InsContent %>');
  document.getElementById("mycontent").appendChild(newdocument1);
   
   
  </script>
······················
后台是：
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Text;
using System.Data.SqlClient;

public partial class Default7 : System.Web.UI.Page
{
  Jolie1118 Jolie = new Jolie1118();
  public string InsContent =string.Empty;
  protected void Page_Load(object sender, EventArgs e)
  {
  string QueryConn = "select * from myblog";
  StringBuilder sBuilder = new StringBuilder();
  SqlCommand Cmd = Jolie.RSql_Cmd(QueryConn);
  Cmd.