/* function getObj courtesy of quirksmode.org
	http://www.quirksmode.org/js/dhtmloptions.html
	many thanks */
function getObj (name) {
	if (document.getElementById) {
		this.obj = document.getElementById (name);
		this.style = document.getElementById (name).style;
	} else if (document.all) {
		this.obj = document.all[name];
		this.style = document.all[name].style;
	} else if (document.layers) {
		this.obj = document.layers[name];
		this.style = document.layers[name];
	}
}

function toggle (n) {
	var l1 = new getObj ('nav1');
	var l2 = new getObj ('nav2');
	var l3 = new getObj ('nav3');
	var l4 = new getObj ('nav4');
	var l5 = new getObj ('nav5');
	switch (n) {
		case 1: if (l1.style.display == 'block') l1.style.display = 'none'; else l1.style.display = 'block'; break;
		case 2: if (l2.style.display == 'block') l2.style.display = 'none'; else l2.style.display = 'block'; break;
		case 3: if (l3.style.display == 'block') l3.style.display = 'none'; else l3.style.display = 'block'; break;
		case 4: if (l4.style.display == 'block') l4.style.display = 'none'; else l4.style.display = 'block'; break;
		case 5: if (l5.style.display == 'block') l5.style.display = 'none'; else l5.style.display = 'block'; break;

	}
}

function openWin (URL) {
aWindow=window.open(URL,"second","toolbar=yes,location=yes,directories=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}