var interval = 3000; //2 seconds

var change = false;
var index = 0;


function changeBanner(elementId) 
{
	var browser=navigator.appName;
	if (browser != "Microsoft Internet Explorer")
	{
		var obj = document.getElementById(elementId);
		var range = obj.ownerDocument.createRange();
		range.selectNodeContents(obj);
		range.deleteContents();
		range.selectNodeContents(obj);
		range.collapse(true);
	}
	
	index++;
	if (index > BannerCount)
		index = 1;
	var txt = "<a href='" + sites[index-1][0] + "' target='world'><img src='" + sites[index-1][1] + "' width='83' height='72' border='1' class='webdesimg' alt='" + sites[index-1][2] + "' /></a>";
	
	if (browser != "Microsoft Internet Explorer")
		var fragment = range.createContextualFragment(txt);
	else
		document.getElementById(elementId).innerHTML =  txt;
		
	if (browser != "Microsoft Internet Explorer")
		obj.appendChild(fragment);
    setTimeout("changeBanner('website')", interval);
}