function popThumbs(num) {
  var divStr = "";
	var imageName = "";
	for (var iss = 1; iss < num+1; iss++) {
		imageName = "villa_"+iss+".jpg";
		divStr = divStr + "<img src='images/thumbs/"+imageName+"' onMouseOver='swapPic(\"images/"+imageName+"\");'/><br/><br/>";
	}

  if (document.all){
  	document.images.displayImg.style.filter="blendTrans(duration=crossFadeDuration)";
  	document.images.displayImg.filters.blendTrans.Apply();      
		document.images.displayImg.filters.blendTrans.Play();
  }
  document.getElementById("imageList").innerHTML = divStr;
	return true;
}

function swapPic(pic) {
  var img = new Image();
  img.src = pic;
  
  if (document.all) {
  	document.images.displayImg.style.filter="blendTrans(duration=crossFadeDuration)";
    document.images.displayImg.filters.blendTrans.Apply();
		document.images.displayImg.src = img.src;
		document.images.displayImg.filters.blendTrans.Play();
	}
	else {
		document.getElementById("displayImg").src = img.src;
	}
	return true; 
}