var img = new Array();
bigfoto = document.getElementById('bigfoto');
var position = 0;
function init() {
	d = document;
	imgs = d.getElementsByTagName("img");
	for(i=0;i<imgs.length-1;i++){
		img[i] = imgs[i];
	}
	showFoto();
}
function goPreview() {
	if(position!=0){
		position--;
		showFoto();
	}
}
function goNext() {
	if(position!=img.length-1){
		position++;
		showFoto();
	}
}
function showFoto() {
	bigfoto = document.getElementById('bigfoto');
	bigfoto.src = '../../../_img/blank.gif'
	if(img[position].parentElement){
		bigfoto.src = img[position].parentElement.href;
	}
	else {
		bigfoto.src = img[position].parentNode.href;
	}
	pos = position+1;
	document.getElementById('numbering').value = pos+'/'+img.length;
}
function showThis(src) {
	for(i=0;i<img.length;i++){
		if(img[i].parentElement){
			var phref = img[i].parentElement.href;
		}
		else {
			var phref = img[i].parentNode.href;
		}
		if(src==phref){
			position = i;
			break;
		}
	}
	showFoto();
	window.location='#navigation';
}