function go(form) {
    	cat = (form.Category.options[form.Category.selectedIndex].value);
   	if (cat != "")
    		location = "?"+cat;
	else
		alert("Please select a year.");
}

function showContact() {

	var o = null;
	var url = location.href;
	var id = url.substring(url.indexOf("?")+1,url.length);

	if(document.getElementById) {
		o = document.getElementById(id);
		if(o!=null) {
			o.style.visibility="visible";
			o.style.display="block";
		}
	} else if(document.layers) {
		o = eval("document.layers.ns_"+id);
		if(typeof o=="object") { o.visibility="show"; }
	}
}