function showTime() { 
var timeContainer = document.getElementById('timeDiv'); 
setInterval(function() { 
timeContainer.innerHTML = getMyTime(); 
},100); 
} 

function getMyTime() { 
var date = new Date(); 

var week;
 switch (date.getDay()){
 case 1: week="星期一"; break;
 case 2: week="星期二"; break;
 case 3: week="星期三"; break;
 case 4: week="星期四"; break;
 case 5: week="星期五"; break;
 case 6: week="星期六"; break;
 default: week="星期天";
 }

var year = date.getFullYear(); 
var hours = date.getHours(); 
var minutes = date.getMinutes(); 
var seconds = date.getSeconds(); 
var mouth = date.getMonth() + 1;
var day = date.getDate();
var timeStr = year + '年' + mouth + '月' + day + '日 ' + week + ' ' ; 
//var timeStr = date.getFullYear() + '年' + date.getMonth() + '月' + date.getDate() + '日 ' + week + '  现在时刻：'; 
//timeStr += hours < 12 ? '上午' : (hours < 6 ? '下午' : '晚上'); 
//timeStr += (hours % 12 < 10 ? '0' : '') + (hours < 12 ? hours : (hours - 12)) + '时'; 

//timeStr += (hours < 10 ? '0' : '') + hours + ':'; 
//timeStr += (minutes < 10 ? '0' : '') + minutes + ':'; 
//timeStr += (seconds < 10 ? '0' : '') + seconds; 
return timeStr; 
} 

function exist(id){
    var hasId=document.getElementById(id);
    if(hasId){return true}
    else{return false}
   }
		
function pageOnload()
{
	/* if (exist("content")){ 
		autoHeight();
	}
	else{
	}  */
	showTime();
}
	
window.onload = pageOnload;