function verify_username (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a username.\n";
}
    var illegalChars = /\W/; // allow letters, numbers, and underscores
    if ((strng.length < 1) || (strng.length > 100)) {
       error = "The username is the wrong length. It must be 6-10 characters.\n";
    }
    else if (illegalChars.test(strng)) {
    error = "The username contains illegal characters.\n";
    }
return error;
}

// verify password - between 68 chars, uppercase, lowercase, and numeral
function verify_password (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a password.\n";
}
    var illegalChars = /[\W_]/; // allow only letters and numbers
    if ((strng.length < 6) || (strng.length > 100)) {
       error = "The password is the wrong length. It must be 6-8 characters.\n";
    }
    else if (illegalChars.test(strng)) {
      error = "The password contains illegal characters.\n";
    }
    else if (!((strng.search(/(a-z)+/)) && (strng.search(/(A-Z)+/)) &&
(strng.search(/(0-9)+/)))) {
       error = "The email must contain at least one uppercase letter, one lowercase letter, and one numeral.\n";
    }
return error;
}



// verify phone number - strip out delimiters and verify for 10 digits
function verify_phone (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a password.\n";
}
    var illegalChars = /[\W_]/; // allow only letters and numbers
    if ((strng.length < 6) || (strng.length > 8)) {
       error = "The client ID is the wrong length. It must be 6-8 characters.\n";
    }
    else if (illegalChars.test(strng)) {
      error = "The client ID contains illegal characters.\n";
    }
    else if (!((strng.search(/(a-z)+/)) && (strng.search(/(A-Z)+/)) && (strng.search(/(0-9)+/)))) {
       error = "The client ID must contain at least one uppercase letter, one lowercase letter, and one numeral.\n";
    }
return error;
}