var nbsp = 160;    // non-breaking space char

var node_text = 3; // DOM text node-type

var emptyString = /^\s*$/

var glb_vfld;      // retain vfld for timer thread



// -----------------------------------------

//                  trim

// Trim leading/trailing whitespace off string

// -----------------------------------------



function trim(str)

{

  return str.replace(/^\s+|\s+$/g, '')

};





function highlight_row(row, type)

{

   if (type == 'off')

   {

     row.bgColor = '#FDF9D3';

   }

   else if (type == 'on')

   {

     row.bgColor = '#EAF9FF';

   }

}



// -----------------------------------------

//                  setfocus

// Delayed focus setting to get around IE bug

// -----------------------------------------



function setFocusDelayed(vfld)

{

  glb_vfld.focus()

}



function setfocus(vfld)

{

  glb_vfld = vfld;

  setTimeout( 'setFocusDelayed()', 100 );

}





// -----------------------------------------

//                  msg

// Display warn/error message in HTML element

// commonCheck routine must have previously been called

// -----------------------------------------



function msg(fld,     // id of element to display message in

             msgtype, // class to give element ("warn" or "error")

             message) // string to display

{

  // setting an empty string can give problems if later set to a

  // non-empty string, so ensure a space present. (For Mozilla and Opera one could

  // simply use a space, but IE demands something more, like a non-breaking space.)

  var dispmessage;

  if (emptyString.test(message))

    dispmessage = String.fromCharCode(nbsp);

  else

    dispmessage = message;



  var elem = document.getElementById(fld);

  elem.firstChild.nodeValue = dispmessage;



  elem.className = msgtype;   // set the CSS class to adjust appearance of message

};



// -----------------------------------------

//            commonCheck

// Common code for all validation routines to:

// (a) check for older / less-equipped browsers

// (b) check if empty fields are required

// Returns true (validation passed),

//         false (validation failed) or

//         proceed (don't know yet)

// -----------------------------------------



var proceed = 2;



function commonCheck    (vfld,   // element to be validated

                         ifld,   // id of element to receive info/error msg

                         reqd)   // true if required

{

  if (!document.getElementById)

    return true;  // not available on this browser - leave validation to the server

  var elem = document.getElementById(ifld);

  if (!elem.firstChild)

    return true;  // not available on this browser

  if (elem.firstChild.nodeType != node_text)

    return true;  // ifld is wrong type of node



  if (emptyString.test(vfld.value)) {

    if (reqd) {

      msg (ifld, "error", "Fel");

      setfocus(vfld);

      return false;

    }

    else {

      msg (ifld, "warn", "ok");   // OK

      return true;

    }

  }

  return proceed;

}



// -----------------------------------------

//            validatePresent

// Validate if something has been entered

// Returns true if so

// -----------------------------------------



function validatePresent(vfld,   // element to be validated

                         ifld )  // id of element to receive info/error msg

{

  var stat = commonCheck (vfld, ifld, true);

  if (stat != proceed) return stat;



  msg (ifld, "warn", "ok");

  return true;

};







// -----------------------------------------

//            validateSex

// Validate if something has been entered

// Returns true if so

// -----------------------------------------



function validateSex(vfld,   // element to be validated

                         ifld )  // id of element to receive info/error msg

{



  if (vfld.value == "Man")

  {

          msg (ifld, "warn", "ok");   //OK

          return true;

  }

  if (vfld.value == "Kvinna")

  {

          msg (ifld, "warn", "ok");   //OK

          return true;

  }

  else

  {

          //alert(''+vfld.value);

          msg (ifld, "error", "Välj kön!");

          setfocus(vfld);

          return false;

  }





  msg (ifld, "warn", "ok");

  return true;

};











// -----------------------------------------

//            validateSame

// Validate if fieldA is same as fieldB

// -----------------------------------------



function validateSame(vfld,vfld2,   // element to be validated

                         ifld )  // id of element to receive info/error msg

{

  //var stat = commonCheck (vfld, ifld, true);

  if (vfld.value.length>=1)

  {

      if (vfld.value == vfld2.value)

      {

          msg (ifld, "warn", "ok");   //OK

          return true;

      }

      else

      {

          msg (ifld, "error", "Inte samma");

          setfocus(vfld);

          return false;

      }

  }

  else

  {

      msg (ifld, "error", "Fel");

      setfocus(vfld);

      return false;

  }



  msg (ifld, "warn", "ok");

  return true;

};



// -----------------------------------------

//               validateEmail

// Validate if e-mail address

// Returns true if so (and also if could not be executed because of old browser)

// -----------------------------------------



function validateEmail  (vfld,   // element to be validated

                         ifld,   // id of element to receive info/error msg

                         reqd)   // true if required

{

  var stat = commonCheck (vfld, ifld, reqd);

  if (stat != proceed) return stat;



  var tfld = trim(vfld.value);  // value of field with whitespace trimmed off

  var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/

  if (!email.test(tfld)) {

    msg (ifld, "error", "Inte en giltig email");

    setfocus(vfld);

    return false;

  }



  var email2 = /^[A-Za-z1-9][\w.-]+@\w[\w.-]+\.[\w.-]*[A-Za-z][A-Za-z]$/

  if (!email2.test(tfld))
  {
    msg (ifld, "warn", "Kontrollera email!");
    return false;
  }

  else

    msg (ifld, "warn", "ok");

  return true;

};





// -----------------------------------------

//            validateTelnr

// Validate telephone number

// Returns true if so (and also if could not be executed because of old browser)

// Permits spaces, hyphens, brackets and leading +

// -----------------------------------------



function validateTelnr  (vfld,   // element to be validated

                         ifld,   // id of element to receive info/error msg

                         reqd)   // true if required

{

  var stat = commonCheck (vfld, ifld, reqd);

  if (stat != proceed) return stat;



  var tfld = trim(vfld.value);  // value of field with whitespace trimmed off

  var telnr = /^\+?[0-9 ()-]+[0-9]$/

  if (!telnr.test(tfld)) {

    msg (ifld, "error", "siffror, () eller +");

    setfocus(vfld);

    return false;

  }



  var numdigits = 0;

  for (var j=0; j<tfld.length; j++)

    if (tfld.charAt(j)>='0' && tfld.charAt(j)<='9') numdigits++;



  if (numdigits<5) {

    msg (ifld, "error", "" + numdigits + " siffor verkar lite kort?");

    setfocus(vfld);

    return false;

  }



  if (numdigits>15)

    msg (ifld, "warn", numdigits + " siffror, ok?");

  else {

    if (numdigits<10)

      msg (ifld, "warn", "" + numdigits + " siffror, ok");

    else

      msg (ifld, "warn", "ok");

  }

  return true;

};



// -----------------------------------------

//            validateNumber

// Validate telephone number

// Returns true if so (and also if could not be executed because of old browser)

// Permits spaces, hyphens, brackets and leading +

// -----------------------------------------

function validateNumber (vfld,   // element to be validated

                         ifld,   // id of element to receive info/error msg

                         reqd)   // true if required

{

  var stat = commonCheck (vfld, ifld, reqd);

  if (stat != proceed) return stat;



  var tfld = trim(vfld.value);  // value of field with whitespace trimmed off

  var telnr = /^\+?[0-9 ()-]+[0-9]$/

  if (!telnr.test(tfld)) {

    msg (ifld, "error", "Siffror!");

    setfocus(vfld);

    return false;

  }





    msg (ifld, "warn", "ok");



  return true;

};





// -----------------------------------------

//            validateBirth

// Validate telephone number

// Returns true if so (and also if could not be executed because of old browser)

// Permits spaces, hyphens, brackets and leading +

// -----------------------------------------

function validateBirth (vfld,   // element to be validated

                         ifld,   // id of element to receive info/error msg

                         reqd)   // true if required

{

  var stat = commonCheck (vfld, ifld, reqd);

  if (stat != proceed) return stat;



  var tfld = trim(vfld.value);  // value of field with whitespace trimmed off

  var nr = /^\+?[0-9 ()-]+[0-9]$/

  if (!nr.test(tfld)) {

    msg (ifld, "error", "Siffror! år,månad,dag tex:770609");

    setfocus(vfld);

    return false;

  }





    msg (ifld, "warn", "ok");



  return true;

};



// -----------------------------------------

//             validateAge

// Validate person's age

// Returns true if OK

// -----------------------------------------



function validateAge    (vfld,   // element to be validated

                         ifld,   // id of element to receive info/error msg

                         reqd)   // true if required

{

  var stat = commonCheck (vfld, ifld, reqd);

  if (stat != proceed) return stat;



  var tfld = trim(vfld.value);

  var ageRE = /^[0-9]{1,3}$/

  if (!ageRE.test(tfld)) {

    msg (ifld, "error", "Siffror!");

    setfocus(vfld);

    return false;

  }



  if (tfld>=200) {

    msg (ifld, "error", "Ålder inte möjlig");

    setfocus(vfld);

    return false;

  }



  if (tfld>110) msg (ifld, "warn", "Äldre än 110??");

  else {

    if (tfld<7) msg (ifld, "warn", "Är du inte lite väl ung?");

    else        msg (ifld, "warn", "ok");

  }

  return true;

};



// -----------------------------------------

//             validateRadioButton

//

//

// -----------------------------------------

function valButton (btn,ifld)

{

  if (btn.value == "yes")

  {

      msg (ifld, "warn", "ok");   //OK

      return true;

  }

  else

  {

      msg (ifld, "error", "Ditt konto kommer INTE att skapas");

      setfocus(btn);

      return false;

  }

  msg (ifld, "warn", "ok");

  return true;

}



// -----------------------------------------

//             validateIfNickInUse

//

//

// -----------------------------------------

/*function valNickInUse(vfld,btn,ifld) {

  if (btn.value == "yes")

  {

      msg (ifld, "warn", "ok");   //OK

      return true;

  }

  else

  {

      msg (ifld, "error", "Användarnamnet är upptaget");

      setfocus(btn);

      return false;

  }

  msg (ifld, "warn", "ok");

  return true;

} */