//$.validator.addMethod("phone", function(phone_number, element) {
//    var digits = "0123456789";
//    var phoneNumberDelimiters = "()-";
//    var validWorldPhoneChars = phoneNumberDelimiters + "+";
//    var minDigitsInIPhoneNumber = 10;
//    s = stripCharsInBag(phone_number, validWorldPhoneChars);
//    return this.optional(element) || isInteger(s) && s.length >= minDigitsInIPhoneNumber;
//}, "Please enter a valid phone number");

//function isInteger(s) {
//    var i;
//    for (i = 0; i < s.length; i++) {
//        // Check that current character is number.
//        var c = s.charAt(i);
//        if (((c < "0") || (c > "9"))) return false;
//    }
//    // All characters are numbers.
//    return true;
//}
//function stripCharsInBag(s, bag) {
//    var i;
//    var returnString = "";
//    // Search through string's characters one by one.
//    // If character is not in bag, append to returnString.
//    for (i = 0; i < s.length; i++) {
//        // Check that current character isn't whitespace.
//        var c = s.charAt(i);
//        if (bag.indexOf(c) == -1) returnString += c;
//    }
//    return returnString;
//}

$.validator.addMethod("phone", function(ph, element) {
    if (ph == null) {
        return false;
    }
    var stripped = ph.replace(/[\s()\\+-]\.?/gi, "");
    // 10 is the minimum number of numbers required
    return ((/\d{10,}/i).test(stripped));
}, "Please enter a valid phone number");