var CHTmainDomain   = "//www.chinahighlights.com";
var CHTanswerDomain = "//answers.chinahighlights.com";
var CHTsecureDomain = "//secure.chinahighlights.com";

function googlesreachHeadernew(isEnter)
		{
			var temphref,g_q
			temphref = null;
			g_q = null;
			g_q = $("#g_q").val();
			temphref = $("#g_sa").attr("href");
			temphref = temphref + "&q=" +g_q;
			if(isEnter==1){
				window.location.href=temphref;
			}else{
				$("#g_sa").attr("href",temphref);
			}
		}

$(document).ready(function() {
    $('#beijingtime').jclock({
    format: '%H:%M:%S',
    utcOffset: 8,
    utc: true,
    fontFamily: 'arial',
    fontSize: '17px',
    foreground: '#a31022',
    background: '',
    seedTime: undefined,
    timeout: 1000 // 1000 = one second, 60000 = one minute
        });
    });
<!--头部登陆用-->
    var login_sign= false;
    var URL = CHTmainDomain+"/uc-client/client.asp";
    var Ihide = true;

    function Check_Login(josn)
    {
        if(josn == "1"){
			$.getJSON(URL+"?jsoncallback=?",
				{j:"login","round":GetRandom(1000)},
				function(data){
				if (data.UserID == "0"){
					login_sign = false;
				} else {
					login_sign = true;
					Logined(data.NickName);
				}
			});
		} else {
			$.get(URL + "?c=login&round=" + GetRandom(1000),function(data){
				if ($(data).find("UserID").text() =="0")
				{login_sign = false;}
				else
				{
					login_sign = true;
					Logined($(data).find("NickName").text());
				}
			},"xml");
		}
    }
    Mlogin(0,'1');

    function Mlogin(signno,josn) {
        var Email,Pass, rememberme;


        Email = $("#loginmail1").val();
        Pass  = $("#loginpass1").val();
		rememberme = $("#rememberme").attr("checked");

        if (login_sign == false && signno ==1)
        {
			$("#headLogin .loginButton").attr("src","/pic/ajax-loader-1.gif");

			if (Email=="") return errLogin("Email required!");
			if (Pass=="")  return errLogin("Password required!");
			if(josn=="1"){
				$.getJSON(URL+"?jsoncallback=?",
					{j:"login",loginmail:Email,loginpass:Pass,rememberme:rememberme},
					function(data){
						if (data.UserID != "0"){
							Logined(data.NickName);
						} else {
							errLogin("Wrong email or password!");
						}
					}
				);
			} else {
				$.ajax({
					type: "POST",
					url: URL,
					data: "c=login&loginmail=" + Email + "&loginpass=" + Pass + "&rememberme="+rememberme,
					cache: false,
					dataType: "xml",
					success: function(msg){
						if ($(msg).find("UserID").text()!="0")
						{
							Logined($(msg).find("NickName").text());
						} else {
							errLogin("Wrong email or password!");
						}
					}
				});
			}
        }

		function errLogin(msg){
			alert(msg);
			$("#headLogin .loginButton").attr("src","/pic/login-button.png");
		}
    }
    function GetRandom(n){ return Math.floor( Math.random() * n+1)};
    function MSingOut(josn)
    {
        if(josn == "1"){
			$.getJSON(URL+"?jsoncallback=?",
				{j:"signout","round":GetRandom(1000)},
				function(data){
				if (data.Statu =="1"){
					login_sign = false;
					initLgoin();
				}
			});
		} else {
		$.get(URL + "?c=signout&round=" + GetRandom(1000),function(data){
                if ($(data).find("Statu").text() =="1")
                {
                    login_sign = false;
					initLgoin();
                }
            },"text");
		}
    }

	function initLgoin(){
		$("#headLogin .logIn,#headLogin .signUp").show();
		$("#headLogin .logout,#headLogin .logged,#headLogin .loginForm").hide();

	}
	function showLoginForm(){
		$("#headLogin .loginButton").attr("src","/pic/login-button.png");
		$("#headLogin .logIn img").attr("src","/pic/red-arrow-up.png");
		$("#headLogin .loginForm").fadeIn(300);
	}
	function hideLoginForm(){
		$("#headLogin .logIn img").attr("src","/pic/red-arrow-down.png");
		$("#headLogin .loginForm").fadeOut(100);
		$("#headLogin_overlay").remove();
	}
	function Logined(NickName){
		$("#headLogin .signUp,#headLogin .logIn,#headLogin .loginForm").hide();
		$("#headLogin .logout,#headLogin .logged").show();
		$("#headLogin .logged a").text(NickName);
	}
	function show(){
		$("#headLogin .logIn").click(function(){
			if($("#headLogin .loginForm").is(":visible")){
				hideLoginForm();
			}else{
				showLoginForm();
			}
		 });
		$("#headLogin .loginForm").mouseup(function() {
			return false
		});
		$(document).mouseup(function(e) {
			if($(e.target).parent("#headLogin").length==0) {
				hideLoginForm();
			}
		});
	}
$(function() {
    Check_Login('1');
	show();
});
	<!--头部登陆结束-->