var _gbID = "3"; // current banner id
var _gIntvl = 0;

function BannerFade(brow) {
	//get the current image and link to transition off
	var AdImg = document.getElementById("imgAd");
	var AdLnk = document.getElementById("lnkAd");
	//swith to the next image to transition on
	switch (_gbID) {
		case "3": _gbID = "1"; break;
		case "1": _gbID = "2"; break;
		default: _gbID = "3"; break;
	}
	// set the new image and link to transition on
	var AdImgIn = document.getElementById("imgAd" + _gbID);
	var AdLnkIn = document.getElementById("lnkAd" + _gbID);
	// update the link data
	AdLnk.title = AdLnkIn.title;
	AdLnk.href = AdLnkIn.href;
	// now transition the image
	switch (brow) {
		case "IE":
			AdImg.style.filter = "blendTrans(duration=1)";
			AdImg.filters.blendTrans(duration = 1).Apply();
			AdImg.filters.blendTrans.Play();
			AdImg.src = AdImgIn.src;
			break;
		default:
			AdImg.style.opacity = 0.1;
			AdImg.src = AdImgIn.src;
			if (_gIntvl > 0) clearInterval(_gIntvl);
			_gIntvl = setInterval(function () {
				var img = document.getElementById("imgAd");
				opac = parseFloat(img.style.opacity);
				img.style.opacity = parseFloat(img.style.opacity) + 0.1;
			}, 100);
			break;
	}
}