//<!-- Minus AutoDato -->
// Copyright © 2001 by Apple Computer, Inc., All Rights Reserved.
//
// You may incorporate this Apple sample code into your own code
// without restriction. This Apple sample code has been provided "AS IS"
// and the responsibility for its operation is yours. You may redistribute
// this code, but you are not permitted to redistribute it as
// "Apple sample code" after having made changes.

// Navn
function checkNavn(strng) {
var error = "";
  if (strng.length == 0) {
     error = "Der er ikke indtastet et navn.\n"
  }
return error;	  
}

// Adresse
function checkAdresse(strng) {
var error = "";
  if (strng.length == 0) {
     error = "Der er ikke indtastet en adresse.\n"
  }
return error;	  
}

// Postnummer

function checkPostnr (strng) {
var error = "";
if (strng == "") {
   error = "Du har ikke indtastet et postnummer.\n";
}

var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = "Postnummeret indeholder ugyldige tegn.";
  
    }
    if (!(stripped.length == 4)) {
	error = "Postnummeret har ikke den rigtige længde.\n";
    } 
return error;
}

// email

function checkEmail (strng) {
var error="";
if (strng == "") {
   error = "Du har ikke indtastet en e-mail adresse.\n";
}

    var emailFilter=/^.+@.+\..{2,3}$/;
    if (!(emailFilter.test(strng))) { 
       error = "Indtast en gyldig e-mail adresse.\n";
    }
    else {
//test email for illegal characters
       var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/
         if (strng.match(illegalChars)) {
          error = "E-mailen indeholder kke-tilladte tegn.\n";
       }
    }
return error;    
}


// phone number - strip out delimiters and check for 8 digits

function checkTlf (strng) {
var error = "";
if (strng == "") {
   error = "Du har ikke indtastet et telefon nummer.\n";
}

var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = "Telefonnummeret indeholder ugyldige tegn.";
  
    }
    if (!(stripped.length == 8)) {
	error = "Telefon nummeret har ikke den rigtige længde. (eks 74832575)\n";
    } 
return error;
}


// password - between 6-8 chars, uppercase, lowercase, and numeral

function checkPassword (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 password is the wrong length.\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 password must contain at least one uppercase letter, one lowercase letter, and one numeral.\n";
    }  
return error;    
}    


// username - 4-10 chars, uc, lc, and underscore only.

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


    var illegalChars = /\W/; // allow letters, numbers, and underscores
    if ((strng.length < 4) || (strng.length > 10)) {
       error = "The username is the wrong length.\n";
    }
    else if (illegalChars.test(strng)) {
    error = "The username contains illegal characters.\n";
    } 
return error;
}       


// non-empty textbox

function isEmpty(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The mandatory text area has not been filled in.\n"
  }
return error;	  
}

// was textbox altered

function isDifferent(strng) {
var error = ""; 
  if (strng != "Can\'t touch this!") {
     error = "You altered the inviolate text area.\n";
  }
return error;
}

// exactly one radio button is chosen

function checkRadio(checkvalue) {
var error = "";
   if (!(checkvalue)) {
       error = "Du mangler at vælge en rute.\n";
    }
return error;
}

// valid selector from dropdown list

function checkDropdown(choice) {
var error = "";
    if (choice == 0) {
    error = "Du valgte ikke en betalingsmåde.\n";
    }    
return error;
}