var blnExplorer = (window.navigator.userAgent.indexOf('MSIE') > 0)? true:false; 

function slideshow(intIndex) { 
	var objHtml; 
	objHtml = document.getElementById("imgSlideshow"); 
	if (blnExplorer == true) 
		objHtml.filters[0].Apply();
	if (intIndex == aantalImages) 
		intIndex = 0; 
	objHtml.src = slideImages[intIndex].src; 
	if (blnExplorer == true) objHtml.filters[0].Play(); 
	window.setTimeout("slideshow("+(intIndex+1)+");", timeout); 
}