JSジャンプ方式

   ：
    <script language="javascript" type="text/javascript">
           window.location.href="login.jsp?backurl="+window.location.href; 
    </script>

   ：
    <script language="javascript">
	alert("  ");
	window.history.back(-1);
   </script>

   ：
   <script language="javascript">
	window.navigate("top.jsp");
  </script>

   ：
   <script language="JavaScript">
          self.location='top.htm';
   </script>

   ：
   <script language="javascript">
          alert("    ！");
          top.location='xx.jsp';
   </script>