function ChangeProductPic() {
	if(!document.getElementById("main-pic")) return false;
	if(!document.getElementById("more-pics")) return false;
	
	var path, link;
	var trigger = document.getElementById("main-pic").getElementsByTagName("a")[0];
	var largePic = document.getElementById("main-pic").getElementsByTagName("img")[0];
	var smallPicLinks = document.getElementById("more-pics").getElementsByTagName("a");
	
	for( var i = 0; i < smallPicLinks.length; i++ ) {
		smallPicLinks[i].onclick = function() {
			changePic(this);
			return false;
		}
	}
	
	function changePic(link) {
		for( var i = 0; i < smallPicLinks.length; i++ ) {
			if( smallPicLinks[i] != link )
				smallPicLinks[i].className = "inactive";
			else
				smallPicLinks[i].className = "active";
		}
		path = link.rel;
		newHref = link.href;
		largePic.src = path;
		largePic.parentNode.href = newHref;
	}
}

addLoadEvent(ChangeProductPic);