function toNCR10(str, nl){
	var reg = new RegExp(nl ? "[^\r\n]" : ".|\n", "g");
	return str.replace(reg, function(chr){return "&#" + chr.charCodeAt(0) + ";"});
}

function toNCR16(str, nl){
	var reg = new RegExp(nl ? "[^\r\n]" : ".|\n", "g");
	reg = nl ? /[^\r\n]/g : /.|[\n]/g;
	return str.replace(reg, function(chr){return "&#x" + chr.charCodeAt(0).toString(16) + ";"});
}