function showthumb() {
	document.getElementById('thumbtrg'+this.parentNode.parentNode.getAttribute('rel')).innerHTML = '<img src="'+this.getAttribute('rel')+'" alt="" width="150" height="135"/>';
}

function setthumbs(obj) {
	if(!document.getElementById('thumbpreloader')) {
		document.write('<div id="thumbpreloader" style="width: 1px; height: 1px; overflow:hidden;"></div>');
	}
	var preloader = document.getElementById('thumbpreloader');
	
	var trgul = obj.getElementsByTagName('ul');
	var items = trgul[0].getElementsByTagName('li');
	for(var i =0; i< items.length; i++) {
		items[i].onmouseover = showthumb;
		preloader.innerHTML += '<img src="'+items[i].getAttribute('rel')+'" alt="" />';
	}
}