var imgCnt = 0;

function scrollLeft() {
	imgCnt--;
	if (imgCnt < 0) {
		imgCnt = images.length - 1;
	}
	
	document.getElementById('dogImg').src = images[imgCnt].src;
	document.getElementById('fotoCnt').innerHTML = 'Foto ' + (imgCnt + 1) + ' van ' + images.length;

}

function scrollRight() {
	imgCnt++;
	if (imgCnt >= images.length) {
		imgCnt = 0;
	}

	document.getElementById('dogImg').src = images[imgCnt].src;	
	document.getElementById('fotoCnt').innerHTML = 'Foto ' + (imgCnt + 1) + ' van ' + images.length;

}

function dhtmlLoadScript(url)
{
   var e = document.createElement("script");
   e.src = url;
   e.type="text/javascript";
   document.getElementsByTagName("head")[0].appendChild(e);
}