function show_current_date()
{
	var day=new Array("Chủ nhật", "Thứ hai", "Thứ ba", "Thứ tư", "Thứ năm", "Thứ sáu", "Thứ bảy");
	var month=new Array("01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11", "12");
	var today=new Date();
	var year=today.getYear();
	if ((navigator.appName == "Microsoft Internet Explorer") && (year < 2000)) year="19" + year;
	if (navigator.appName == "Netscape") year=1900 + year;
	var current_date=day[today.getDay()] + ', ' + today.getDate() + '-' + month[today.getMonth()] + '-' + year ;
	document.write(current_date);
}//end function

function show_clock()
{
	var element=document.getElementById('clock');
	var today=new Date();	
	var hours=today.getHours();
	var minutes=today.getMinutes();
	var seconds=today.getSeconds();
	//var dn="PM";
	//if (hours<12) dn="AM";
	//if (hours>12) hours=hours-12;
	//if (hours==0) hours=12;
	if (minutes<=9) minutes = "0" + minutes;
	if (seconds<=9) seconds = "0" + seconds;
	//var current_time = hours + ":" + minutes + ":" + seconds + " " + dn;
	var current_time = hours + ":" + minutes + ":" + seconds;
	element.innerHTML=current_time;
	setTimeout("show_clock()", 1000);
}//end function

show_current_date();