var beijing	= "<font style='font-weight: bold'>北京</font> "
var lundun	= "<font style='font-weight: bold'>伦敦</font> " 
var niuyue	= "<font style='font-weight: bold'>纽约</font> " 
var zhijiage= "<font style='font-weight: bold'>芝加哥</font> " 
var dongjin	= "<font style='font-weight: bold'>东京</font> " 
document.write('<span id="clock1"></span>');
function showclock() 
{
	var date1	= new Date();
	var hour1	= date1.getHours();
	var min1	= date1.getMinutes();
	var sec1	= date1.getSeconds();
	var col1	= ":";
	var x1,x2,x3,x4,x5,y,z;
	x1			= hour1;
	x2			= hour1 + 16;
	x3			= hour1 + 11;
	x4			= hour1 + 9;
	x5			= hour1 + 1;
	if (x1 >=24) x1		= x1 - 24; 
	if (x2 >=24) x2		= x2 - 24; 
	if (x3 >=24) x3		= x3 - 24; 
	if (x4 >=24) x4		= x4 - 24; 
	if (x5 >=24) x5		= x5 - 24; 
	if (min1<=9) min1	= "0" + min1; 
	if (sec1<=9) sec1	= "0" + sec1;
	clock1.innerHTML	= beijing + x1 + col1 + min1 + col1 + sec1 + '　　' + lundun
	+ x2 + col1 + min1 + col1 + sec1 + '　　' + niuyue
	+ x3 + col1 + min1 + col1 + sec1 + '　　' + zhijiage
	+ x4 + col1 + min1 + col1 + sec1 + '　　' + dongjin
	+ x5 + col1 + min1 + col1 + sec1;
}
setInterval("showclock()",1000);