asp简单的ajax留言板(采用三层模式)

sp;Dim PageCount,pages
   Dim lRecordCount,lFirstpage,lPrevpage,lNextpage,lLastpage,lCurrentpage,lPagesize,lGotopage
   Dim p,parms

   If RecordCount Mod PageSize <> 0 Then
    pages = 1
   else
    pages = 0
   End If
   PageCount=CInt(RecordCount/PageSize + pages)

   parms=Array(RecordCount)
   lRecordCount = Format(C_RECORDCOUNT,parms)

   if CInt(CurrentPage)>1 Then
    parms=Array(Pageurl,1)
    lFirstpage = Format(C_FIRSTPAGE1,parms)
    parms=Array(Pageurl,CInt(CurrentPage)-1)
    lPrevpage = Format(C_PREVPAGE1,parms)
   Else
    lFirstpage=C_FIRSTPAGE2
    lPrevpage=C_PREVPAGE2
   End If

   if CInt(CurrentPage)<PageCount Then
    parms=Array(Pageurl,CInt(CurrentPage)+1)
    lNextpage = Format(C_NEXTPAGE1,parms)
    parms=Array(Pageurl,CInt(CurrentPage)+1)
    lLastpage = Format(C_LASTPAGE1,parms)
   Else   
    lNextpage=C_NEXTPAGE2
    lLastpage=C_LASTPAGE2
   End If

   parms=Array(CurrentPage,PageCount)
   lCurrentpage = Format(C_CURRENTPAGE,parms)
   parms=Array(PageSize)
   lPagesize = Format(C_PAGESIZE,parms)
   parms=Array(Pageurl,CurrentPage)
   lGotopage = Format(C_GOTOPAGE,parms)

   p=lRecordCount&lFirstpage&lPrevpage&lNextpage&lLastpage&lCurrentpage&lPagesize&lGotopage
   Page = p

  End Function

 End Class
%>

AccHelper.asp
<%
 ''/// <summary>
 ''/// AccHelper 的摘要说明。
 ''/// </summary>
 Class AccHelper

  Public CONN_STRING

  ''/// <summary>
  ''/// 执行ExecuteNonQuery
  ''/// </summary>
  ''/// <param name="connString">连接字符</param>
  ''/// <param name="cmdText">sql命令</param>
  Public Function ExecuteNonQuery(connString,cmdText)

   Dim objConn
   Set objConn = Server.CreateObject("ADODB.Connection")
   objConn.Open connString
   objConn.Execute(cmdText)

  End Function

  ''/// <summary>
  ''/// 执行ExecuteReader
  ''/// </summary>
  ''/// <param name="connString">连接字符</param>
  ''/// <param name="cmdText">sql命令</param>
  ''/// <returns>RS</returns>
  Public Function ExecuteReader(connString,cmdText)

   Dim objConn,objRS
   Set objConn = Server.CreateObject("ADODB.Connection")