jsp method to display the current system time in real time on the page

JS code

 
<script language="javascript"> 
function realSysTime(clock){ 
var now=new Date(); // create Date object  
var year=now.getFullYear(); // For years  
var month=now.getMonth(); // To get in  
var date=now.getDate(); // Get the date  
var day=now.getDay(); // For weeks  
var hour=now.getHours(); // For hours  
var minu=now.getMinutes(); // For minutes  
var sec=now.getSeconds(); // For seconds  
month=month+1; 
var arr_week=new Array(" Sunday "," week 1"," week 2"," week 3"," week 4"," week 5"," week 6"); 
var week=arr_week[day]; // The week to get Chinese  
var time=year+" years "+month+" month "+date+" day  "+week+" "+hour+":"+minu+":"+sec; // Composite system time  
clock.innerHTML=time; // Display system time  
} 
window.onload=function(){ 
window.setInterval("realSysTime(clock)",1000); // Get and display system time in real time  
} 
</script> 

Add: id="clock" where you want to display for example: < td id="clock" / >