function $(e){return document.getElementById(e);}

function initPage() {
	if ($('photos') && $('holder')) {
		var a = $('photos').getElementsByTagName('img');
		var n = a.length;
		
		for(i=0;i<n;i++) {
			if (a[i].parentNode != $('holder')) {
				a[i].onclick = function() {
					var p = $('holder');
					var m = p.getElementsByTagName('img')[0];
					var img = document.createElement('img');
					var s = m.src;
					var t = this.src;
					
					p.removeChild(m);
					this.src = s.replace('/battery','/thumbs/battery');
					img.src = t.replace('/thumbs/battery','/battery');
					p.appendChild(img);
				};
			}
		}
	}
}

window.onload = initPage;