To serialize DOM object to string in JavaScript

DOM の object を serialize するには

funciton serializeToString(node) {
    try {
        // for Firefox, Chrome, Safari, Opera
        return (new XMLSerializer()).serializeToString(node);
    } catch (e) {
        try {
            // for IE
            return node.xml;
        } catch (e2) {
            alert("I can not serialize DOM node!");
        }
    }
    return false;
}