function openCloseSubcat(subcat) {
	var sDiv = document.getElementById(subcat + "_subcat");
	var sExpander = document.getElementById(subcat + "_expander");
	if (sDiv.style.display == "none") {
		sDiv.style.display = "block";
		sExpander.src = "/images/nav_open.gif";
	} else {
		sDiv.style.display = "none";
		sExpander.src = "/images/nav_closed.gif";
	}
	

}