function checklogin(form)
{ 
 if (form.username.value.length==0)
 {
  alert('请输入用户名！');
  return false;
 }
  if (form.userpass.value.length==0)
 {
  alert('请输入密码！');
    return false;
 }
 return true;
} 
function gettop()
{ 
var postStr = "";
postStr = postStr+"act=getlogin";  //+"&str="+escape(str);
$.ajax(
	{
	type: "POST",
	contentType:"application/x-www-form-urlencoded",
	url: "/logins.asp", 
	data: postStr,
	error: function(){ 
		alert('您所请求的页面有异常，请刷新重试。'); 
		},
	success: function(msg){   
		     $("#vobao_top").html(msg);
			}
	});
} 
function gettop1()
{ 
var postStr = "";
postStr = postStr+"act=getlogin";  //+"&str="+escape(str);
$.ajax(
	{
	type: "POST",
	contentType:"application/x-www-form-urlencoded",
	url: "/logins1.asp", 
	data: postStr,
	error: function(){ 
		alert('您所请求的页面有异常，请刷新重试。'); 
		},
	success: function(msg){   
		     $("#vobao_top").html(msg);
			}
	});
}