function transcribe (node) {
	var chstring = node.value;
	var output = '';
	for (var i=0; i<chstring.length; i++) {
		var ch = map[chstring.charCodeAt(i)];
		if (ch) { output += ch; }
		else { output += chstring.charAt(i); }
		}
	document.getElementById('latin').value = output;
	}