function showpic(target){
	target.getElementsByTagName("img")[0].style.display = "block";
}

function hidepic(target){
	target.getElementsByTagName("img")[0].style.display = "none";
}

function hoverpic(){
	if(!document.getElementsByTagName) return false;
	var hover = document.getElementById("imagebox");
	if(hover){
		var hovitems = hover.getElementsByTagName("img");
		for (var i=0; i<hovitems.length; i++){
			hovitems[i].parentNode.onmouseover = function() {
				showpic(this);
			}
			hovitems[i].parentNode.onmouseout = function() {
				hidepic(this);
			}
		}
	}
	return true;
}

loadEvent(hoverpic);