function hover (el_ref) {
	// Hide the last:
	if (last_item) {
		last_item.className = "";
	}
	last_item = false;
	// Show this one:
	el_ref.className = "hover";
}
var last_item = false;
function unhover (el_ref) {
	last_item = el_ref;
	setTimeout ('last_item.className = "";', 1000);
}