var date_time_week_XMLHttpRequest;
	var date_time_week = document.getElementById("date_time_week");
	var date_time_week_call_url = "/ajax/ajax_date_time_week.php";
	var date_time_week_refresh_time=1000;

	var server_year=0;
	var server_month=0;
	var server_day=0;
	var server_hour=0;
	var server_minute=0;
	var server_second=0;
	var server_week=0;
  var server_week_tip="";
  var server_moment="";

	date_time_week_start_call();
	setInterval("date_time_week_start_call()",	date_time_week_refresh_time);

  function create_date_time_week_XMLHttpRequest() {
    if (window.ActiveXObject) {
       date_time_week_XMLHttpRequest = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else if (window.XMLHttpRequest) {
       date_time_week_XMLHttpRequest = new XMLHttpRequest();
    }
  }

  function date_time_week_start_call() {
    create_date_time_week_XMLHttpRequest();
    date_time_week_XMLHttpRequest.open("get", date_time_week_call_url, true);
		date_time_week_XMLHttpRequest.onreadystatechange = date_time_week_call_back;
    date_time_week_XMLHttpRequest.send(null);
  }

  function date_time_week_call_back() {
    if (date_time_week_XMLHttpRequest.readyState == 4) {
      if (date_time_week_XMLHttpRequest.status == 200) {
        set_date_time_week();
      }
    }
  }

  function set_date_time_week() {

  	var xml_date_time_week=date_time_week_XMLHttpRequest.responseXML;
  	server_year=xml_date_time_week.getElementsByTagName("year")[0].firstChild.nodeValue;
  	server_month=xml_date_time_week.getElementsByTagName("month")[0].firstChild.nodeValue;
  	server_day=xml_date_time_week.getElementsByTagName("day")[0].firstChild.nodeValue;
  	server_hour=xml_date_time_week.getElementsByTagName("hour")[0].firstChild.nodeValue;
  	server_minute=xml_date_time_week.getElementsByTagName("minute")[0].firstChild.nodeValue;
  	server_second=xml_date_time_week.getElementsByTagName("second")[0].firstChild.nodeValue;
  	server_week=xml_date_time_week.getElementsByTagName("week")[0].firstChild.nodeValue;


    if(server_week==1){
    	server_week_tip = "星期一";
    }
    if(server_week==2){
    	server_week_tip = "星期二";
    }
    if(server_week==3){
    	server_week_tip = "星期三";
    }
    if(server_week==4){
    	server_week_tip = "星期四";
    }
    if(server_week==5){
    	server_week_tip = "星期五";
    }
    if(server_week==6){
    	server_week_tip = "星期六";
    }
    if(server_week==0){
    	server_week_tip = "星期日";
    }

    if(server_hour>=0 && server_hour<6){
    	server_moment="凌晨";
    }
    if(server_hour>=6 && server_hour<10){
    	server_moment="早上";
    }
    if(server_hour>=10 && server_hour<14){
    	server_moment="中午";
    }
    if(server_month>=6 && server_month>=9){
    	if(server_hour>=14 && server_hour<20){
    		server_moment="下午";
    	}
    	if(server_hour>=20 && server_hour<=23){
    		server_moment="晚上";
    	}
    }
    else{
    	if(server_hour>=14 && server_hour<19){
    		server_moment="下午";
    	}
    	if(server_hour>=19 && server_hour<=23){
    		server_moment="晚上";
    	}
    }

    date_time_week.innerHTML = "现在是：北京时间&nbsp;" +  server_year +"年"+server_month +"月"+server_day +"日&nbsp;"+ server_moment +"&nbsp;"+server_hour+"时"+server_minute+"分"+server_second+"秒&nbsp;"+server_week_tip;
  }