/**
* "\\n"を強引に改行させるスクリプト
*/
var load_str:String = <ココに読み込んだXMLテキスト>;
var index_num:Number = load_str.indexOf("\\n");
// "\\n"がなくなるまで"\\n"をnewlineに変換
while (index_num != -1) {
    var first_str:String = load_str.substring(0, index_num);
    var length_num:Number = "\\n".length;
    var second_str:String = load_str.substring(index_num + length_num);
    load_str = first_str + newline + second_str;
    index_num = load_str.indexOf("\\n");
}