var all;
var month;
var period;
var day;
function time(){
var currentDate=new Date();
hour=currentDate.getHours();
min=currentDate.getMinutes();
sec=currentDate.getSeconds();
month = currentDate.getMonth() + 1;
day = currentDate.getDate();
year = currentDate.getFullYear();

if(sec<10){sec="0"+sec}
if(min<10){min="0"+min}
if(month<10){month="0"+month}
if(day<10){day="0"+day}

var all=year+" "+month+" "+day+" "+hour+":"+min+":"+sec 
document.getElementById("showDate").innerHTML = all;
window.setTimeout("time()",300)
}
time();