以下是清除session的代码，但是在ASP中不知该怎么用，请各位大虾指点！
protected void Button1_Click(object sender, EventArgs e)
{
if (Session["UserName"] != null)
{
Session.Remove("UserName");
Session.RemoveAll();
Response.Cookies["UserName"].Expires = DateTime.Now;
}
Page.RegisterStartupScript("","<script>window.top.document.location.href='index.aspx';</script>");

谢谢啊！

<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%>
<%protected void Button1_Click(object sender, EventArgs e)
{
if (Session["UserName"] != null)
{
Session.Remove("UserName");
Session.RemoveAll();
Response.Cookies["UserName"].Expires = DateTime.Now;
}
Page.RegisterStartupScript("","<script>window.top.document.location.href='index.aspx';</script>");
}%>
这样写ASP代码对吗？