function showUserStatus_mainSite(userStatuDiv_id)
{
    var userName = getCookie("ST_DisplayName");
    var htmlContent;
    if (userName != null)
    {
        htmlContent  = "";  
        htmlContent += "<a href='/Main.aspx?pid=Office_Default'class=\"import\">欢迎, " + userName + "</a>";
        htmlContent += "<a href='/Main.aspx?pid=Office_Login&id=Logout'id=\"Sign\">退出</a>";  
    }
    else
    {
        htmlContent  = "";        
        htmlContent += "                    <a href='/Main.aspx?pid=Office_Login' id=\"Sign\">登陆</a>";        
        htmlContent += "                    <a href=\"/Main.aspx?pid=Office_Register\" id=\"Join\">免费注册</a>";
    }
    document.getElementById(userStatuDiv_id).innerHTML = htmlContent;
}