window.onload = function() {
	prepareGallery();
	showPic();
}

function prepareGallery() {
	if (!document.getElementsByTagName) return false;
	if (!document.getElementById) return false;
	if (!document.createElement) return false;
	if (!document.getElementById("imagegallery")) return false;
	var gallery = document.getElementById("imagegallery");
	var links = gallery.getElementsByTagName("a");
		for (var i=0; i<links.length; i++) {
		links[i].onmouseover = function() {
			return showPic(this);
		}
	}
}

function showPic(whichpic) {
	// LARGERIMAGE
	if (!document.getElementById("largerimage")) return false;
	var source = whichpic.getAttribute("href");
	var placeholder = document.getElementById("largerimage");
	placeholder.setAttribute("src",source);
	var thumbs = document.createElement("thumbs");
	thumbs.setAttribute("src", "thumbs");
}

addLoadEvent(prepareGallery);
addLoadEvent(showPic);