var timerid = 0;
var images = new Array( "Images/image1.jpg",
						"Images/image2.jpg",
						"Images/image3.jpg");
var countimages = 0;
<!--
function startTime()
{
		if(timerid)
		{
		timerid = 0;
		}
		var tDate = new Date();
 
		if(countimages == images.length)
		{
		countimages = 0;
		}
		if(tDate.getSeconds() % 5 == 0)
		{
		document.getElementById("img1").src = images[countimages];
		}
		countimages++;
 
		timerid = setTimeout("startTime()", 1000);
}
//-->