var i = 0;
function time()
{
	var d = new Date();
	var hours = d.getHours();
	if(hours < 10)
		{
			hours = "0" + hours;
		}
	var minutes = d.getMinutes();
	if(minutes < 10)
		{
			minutes = "0" + minutes;
		}

	if(i == 0)
	{
		document.getElementById("s1").innerHTML = hours;
		document.getElementById("s2").style.visibility = "hidden";
		document.getElementById("s3").innerHTML = minutes;
		i = 1;
	}
	else
	{
		document.getElementById("s1").innerHTML = hours;
		document.getElementById("s2").style.visibility = "visible";
		document.getElementById("s3").innerHTML = minutes;
		i = 0;
	}
}
setInterval("time()",1000);