function checkWholeForm() {

    var why = "";
    why += checkName(document.email.Name.value);
    why += checkEmail(document.email.Email.value);
    why += checkMessageAndMailingList(document.email.Message.value,document.email.MailingList.checked)

    if (why != "") {
       alert(why);
       return false;
    }
return true;
}

function checkEmail (strng) {
var error="";
if (strng == "") {
   error = "You didn't enter an email address.\n";
}

    var emailFilter=/^.+@.+\..{2,3}$/;
    if (!(emailFilter.test(strng))) {
       error = "Please enter a valid email address.\n";
    }
    else {
        //test email for illegal characters
       var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/
         if (strng.match(illegalChars)) {
          error = "The email address contains illegal characters.\n";
       }
    }
return error;
}

function checkName (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a username.\n";
}

    var illegalChars = /\W/; // allow letters, numbers, and underscores
    if ((strng.length < 3)) {
       error = "Please enter a name with at least 3 letters.\n";
    }
   // else if (illegalChars.test(strng)) {
  //  error = "The username contains illegal characters.\n";
  //  }
return error;
}

function checkMessageAndMailingList(message,checkvalue) {
var error = "";
   if (!(checkvalue) && message == "") {
       error = "Please enter a message or sign up for the mailing list.\n";
    }
return error;
}