// form validation function //

function validate1(kontakt) {
  var naziv = kontakt.naziv.value;
  var kraj = kontakt.kraj.value;
  var telefon = kontakt.telefon.value;
  var email = kontakt.email.value;
  
  var numberRegex = /^[0-9]*$/;
  var dateRegex = /^[0-9\.]*$/;
  var phoneRegex = /^[0-9 \-]*$/;
  var nameRegex = /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/;
  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
  var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);

  if(naziv == "") {
    inlineMsg('naziv','Vpisati morate ime in priimek.',2);
    return false;
  }

  if(kraj == "") {
    inlineMsg('kraj','Vpisati morate kraj.',2);
    return false;
  }

  if(telefon == "") {
    inlineMsg('telefon','Vpisati morate številko svojega telefona',2);
    return false;
  }

  if(!telefon.match(phoneRegex)) {
    inlineMsg('telefon','Dovoljene so le številke in pomišljaj (-)',2);
    return false;
  }


  if(email == "") {
    inlineMsg('email','Vpisati morate vaš e-mail naslov.',2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email','Vpišite pravilno vaš e-mail naslov.',2);
    return false;
  }

  return true;
}


function validate(narocilo) {
  var kolicina = narocilo.kolicina.value;
  var naziv = narocilo.naziv.value;
  var naslov = narocilo.naslov.value;
  var kraj = narocilo.kraj.value;
  var telefon = narocilo.telefon.value;
  var email = narocilo.email.value;
  
  var numberRegex = /^[0-9]*$/;
  var dateRegex = /^[0-9\.]*$/;
  var phoneRegex = /^[0-9 \-]*$/;
  var nameRegex = /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/;
  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
  var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);

  if(naziv == "") {
    inlineMsg('naziv','Vpisati morate ime in priimek.',2);
    return false;
  }
  if(naslov == "") {
    inlineMsg('naslov','Vpisati morate ulico in hišno številko.',2);
    return false;
  }

  if(kraj == "") {
    inlineMsg('kraj','Vpisati morate kraj.',2);
    return false;
  }

  if(telefon == "") {
    inlineMsg('telefon','Vpisati morate številko svojega telefona',2);
    return false;
  }

  if(!telefon.match(phoneRegex)) {
    inlineMsg('telefon','Dovoljene so le številke in pomišljaj (-)',2);
    return false;
  }

  if(kolicina == "") {
    inlineMsg('kolicina','Vpisati morate število kosov, ki jih naročate',2);
    return false;
  }

  if(!kolicina.match(numberRegex)) {
    inlineMsg('kolicina','Dovoljene so le številke',2);
    return false;
  }

  if(email == "") {
    inlineMsg('email','Vpisati morate vaš e-mail naslov.',2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email','Vpišite pravilno vaš e-mail naslov.',2);
    return false;
  }

  return true;
}

// START OF MESSAGE SCRIPT //

var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3
var MSGOFFSET_V = 3;
var MSGOFFSET_H = 3;
var MSGHIDE = 3;

// build out the divs, set attributes and call the fade function //
function inlineMsg(target,string,autohide) {
  var msg;
  var msgcontent;
  if(!document.getElementById('msg')) {
    msg = document.createElement('div');
    msg.id = 'msg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0)';
    msg.style.opacity = 0;
    msg.alpha = 0;
  } else {
    msg = document.getElementById('msg');
    msgcontent = document.getElementById('msgcontent');
  }
  msgcontent.innerHTML = string;
  msg.style.display = 'block';
  var msgheight = msg.offsetHeight;
  var targetdiv = document.getElementById(target);
  targetdiv.focus();
  var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
// This is the added if-statement
  var buttonRegex = /^btn_[a-wA-W0-9_]+$/; 
  if(target.match(buttonRegex)) {
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2) + BTN_MSGOFFSET_V;
  var leftposition = leftPosition(targetdiv) + targetwidth + BTN_MSGOFFSET_H;
} else {
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2) + MSGOFFSET_V;
  var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET_H;
}
// End addition
  msg.style.top = topposition + 'px';
  msg.style.left = leftposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

// hide the form alert //
function hideMsg(msg) {
  var msg = document.getElementById('msg');
  if(!msg.timer) {
    msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
  }
}

// face the message box //
function fadeMsg(flag) {
  if(flag == null) {
    flag = 1;
  }
  var msg = document.getElementById('msg');
  var value;
  if(flag == 1) {
    value = msg.alpha + MSGSPEED;
  } else {
    value = msg.alpha - MSGSPEED;
  }
  msg.alpha = value;
  msg.style.opacity = (value / 100);
  msg.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(msg.timer);
    msg.timer = null;
  } else if(value <= 1) {
    msg.style.display = "none";
    clearInterval(msg.timer);
  }
}

// calculate the position of the element in relation to the left of the browser //
function leftPosition(target) {
  var left = 0;
  if(target.offsetParent) {
    while(1) {
      left += target.offsetLeft;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.x) {
    left += target.x;
  }
  return left;
}

// calculate the position of the element in relation to the top of the browser window //
function topPosition(target) {
  var top = 0;
  if(target.offsetParent) {
    while(1) {
      top += target.offsetTop;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.y) {
    top += target.y;
  }
  return top;
}

// preload the arrow //
if(document.images) {
  arrow = new Image(13,150); 
  arrow.src = "images/messages_arrow.png"; 
}

// function for radio button validation //
function radioB(btn) {
var cnt = -1;
for (var i=btn.length-1; i > -1; i--) {
if (btn[i].checked) {cnt = i; i = -1;}
}
if (cnt > -1) return btn[cnt].value;
else return null;
}

// Function to require a checkbox to be checked
function checkB(box) {
if (box.checked) return box.value;
else return null;
}