function checkDisplay(name) {
	for (i=1; i<101; i++) {
		if (!document.getElementById(name + "-" + i)) { break; }
		if (document.getElementById(name + "-" + i).style.display == 'none') {
			document.getElementById(name + "-" + i).style.display = '';
			if (navigator.userAgent.indexOf("Firefox") > -1) {
				document.getElementById(name + "-label").textContent = '▼';
			} else {
				document.getElementById(name + "-label").innerText = '▼';
			}
		} else {
			document.getElementById(name + "-" + i).style.display = 'none';
			if (navigator.userAgent.indexOf("Firefox") > -1) {
				document.getElementById(name + "-label").textContent = '▲';
			} else {
				document.getElementById(name + "-label").innerText = '▲';
			}
		}
	}
}