function is_login() 
{ 
	var status = "0"; 
	if(status=="1") 
		return true; 
	else 
		return false; 
} 
function get_uid() 
{ 
	var uid = "0"; 
	return uid; 
}

function get_ua()
{
	var ua = "";
	return ua;
}
function getvistorinfo()
{
    var vistorinfo = "湖南省长沙市电信";
    return vistorinfo;
}