converts IP address to octal format

IP2Octal.js

/* IP2Octal.js - converts IP address to Octal format
 * @author - Livingston Samuel
 *
 * @requires - padString.js - http://gist.github.com/275259#file_pad_string.js
 */

var IP2Octal = function (ip) {
    var ipSyntax = /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/, ipArr, i = 4, result = [];

    if (ipSyntax.test(ip)) {
        ipArr = ip.split(".");

        while (i--) {
            if (ipArr[i] > 255) {
                throw new Error("Invalid IP Address");
            } else {
                result.push(padString(parseInt(ipArr[i], 10).toString(8), 0, 8));
            }
        }

        return result.reverse().join(".");
    } else {
        throw new Error("Invalid IP Address");
    }
};