function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 } 
}
window.onload = externalLinks;


function check_checkbox(id) 
{
	checkbox = document.getElementById(id);
	if (checkbox.checked != true)
	 checkbox.checked = true;
}
function test(what)
{
	return confirm(what);
}

function openwin(url,name,width,height) 
{
	window.open(url,name,"toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizeable=no,width="+width+",height="+height);
}
function zkontroluj_heslo(theForm){
  if (theForm.heslo1.value == "" && theForm.heslo2.value == "")
  {
    alert("Please fill in the password.");
    theForm.heslo1.focus();
    return false;
  }
  else
  {
	   if ((theForm.heslo1.value != theForm.heslo2.value)){
		    alert("Password don't match, please reenter them.");
		    theForm.heslo1.value = '';
		    theForm.heslo2.value = '';
		    theForm.heslo1.focus();
  		return false;
	   }
	}
return true;
}

function zkontroluj_referenci(theForm){
  if (theForm.nazev.value == "")
  {
    alert("Please, fill in the reference.");
    theForm.nazev.focus();
    return false;
  }
return true;
}

// tato funkce zaskrtne vsechna pole
	function checkall() {
	  cur = document.formular
        for (i = 0; i < cur.length; i++) {
          var el = cur.elements[i];
          if (el.type == "checkbox") {
            el.checked = true;
          }
        }
    }

  // tato funkce zrusi zaskrtnuti vsech poli
    function uncheckall() {
        cur = document.formular
        for (i = 0; i < cur.length; i++) {
          var el = cur.elements[i];
          if (el.type == "checkbox") {
            el.checked = false;
          }
        }
    }
    
    
function zkontroluj_registraci(theForm)
{
  //pokud je poradce, je povinne jmeno, prijmeni, telefon a mail
  if (theForm.typ_partnera1.checked == true)
  {
    if (theForm.jmeno.value == "" || theForm.jmeno.value.length < 2){
		  alert("Please, fill in your first name.");
		  theForm.jmeno.focus();
		  return false;
	  }
	  if (theForm.prijmeni.value == "" || theForm.prijmeni.value.length < 2){
		  alert("Please, fill in your surname.");
		  theForm.prijmeni.focus();
		  return false;
	  }
	  if (theForm.telefon.value == "" || theForm.telefon.value.length < 2){
		  alert("Please, fill in your phone number.");
		  theForm.telefon.focus();
		  return false;
	  }
	  if (theForm.email.value == "" || theForm.email.value.indexOf('@',1)== -1 || theForm.email.value.indexOf('.',2)==-1){
		  alert("Please, fill in your e-mail adresse.");
		  theForm.email.focus();
		  return false;
    }
  }
  else if (theForm.typ_partnera2.checked == true)
  { 
    //pokud je firma tak vse co u poradce  +  nazev firmy
    if (theForm.jmeno.value == "" || theForm.jmeno.value.length < 2){
		  alert("Please, fill in first name of contacts person.");
		  theForm.jmeno.focus();
		  return false;
	  }
	  if (theForm.prijmeni.value == "" || theForm.prijmeni.value.length < 2){
		  alert("Please, fill in surname of contacts person.");
		  theForm.prijmeni.focus();
		  return false;
	  }
	  if (theForm.nazev.value == "" || theForm.nazev.value.length < 2){
		  alert("Please, fill in the company's name.");
		  theForm.nazev.focus();
		  return false;
	  }
	  if (theForm.telefon.value == "" || theForm.telefon.value.length < 2){
		  alert("Please, fill in the phone number.");
		  theForm.telefon.focus();
		  return false;
	  }
	  if (theForm.email.value == "" || theForm.email.value.indexOf('@',1)== -1 || theForm.email.value.indexOf('.',2)==-1){
		  alert("Please, fill in the e-mail adresse.");
		  theForm.email.focus();
		  return false;
    }
  }
return true;
}

function zkontroluj_dotaz(theForm)
{
  if (theForm.jmeno.value == "" || theForm.jmeno.value.length < 2){
	  alert("Please, fill in your first name and surname.");
	  theForm.jmeno.focus();
	  return false;
  }
	if (theForm.email.value == "" || theForm.email.value.indexOf('@',1)== -1 || theForm.email.value.indexOf('.',2)==-1){
	  alert("Please, fill in your e-mail adresse.");
	  theForm.email.focus();
	  return false;
  }
  if (theForm.dotaz.value == "" || theForm.dotaz.value.length < 2){
	  alert("Please, fill in your question.");
	  theForm.dotaz.focus();
	  return false;
  }
  if (theForm.kontrola_kodu.value == "" || theForm.kontrola_kodu.value.length < 5){
	  alert("Please, fill in the code check.");
	  theForm.kontrola_kodu.focus();
	  return false;
  }
  return true;
}

function zkontroluj_diskusi(theForm)
{
  if (theForm.jmeno.value == "" || theForm.jmeno.value.length < 2){
	  alert("Please, fill in your name.");
	  theForm.jmeno.focus();
	  return false;
  }
	if (theForm.email.value == "" || theForm.email.value.indexOf('@',1)== -1 || theForm.email.value.indexOf('.',2)==-1){
	  alert("Please, fill in your e-mail adresse.");
	  theForm.email.focus();
	  return false;
  }
  if (theForm.predmet.value == "" || theForm.predmet.value.length < 2){
	  alert("Please, fill in the subject.");
	  theForm.predmet.focus();
	  return false;
  }
  if (theForm.text.value == "" || theForm.text.value.length < 2){
	  alert("Please, fill in the text.");
	  theForm.text.focus();
	  return false;
  }
  if (theForm.kontrola_kodu.value == "" || theForm.kontrola_kodu.value.length < 5){
	  alert("Please, fill in the code check.");
	  theForm.kontrola_kodu.focus();
	  return false;
  }
  return true;
}


function zkontroluj_klienta(theForm)
{
  if (theForm.jmeno.value == "" || theForm.jmeno.value.length < 2){
	  alert("Please, fill in first name.");
	  theForm.jmeno.focus();
	  return false;
  }
  if (theForm.prijmeni.value == "" || theForm.prijmeni.value.length < 2){
	  alert("Please, fill in surname.");
	  theForm.prijmeni.focus();
	  return false;
	}
	if (theForm.telefon.value == "" || theForm.telefon.value.length < 2){
	  alert("Please, fill in phone number.");
	  theForm.telefon.focus();
	  return false;
	}
	if (theForm.email.value == "" || theForm.email.value.indexOf('@',1)== -1 || theForm.email.value.indexOf('.',2)==-1){
	  alert("Please, fill in e-mail adresse.");
	  theForm.email.focus();
	  return false;
  }
  return true;
}

function zkontroluj_email(theForm)
{
	if (theForm.email.value == "" || theForm.email.value.indexOf('@',1)== -1 || theForm.email.value.indexOf('.',2)==-1){
	  alert("Please, fill in e-mail adresse.");
	  theForm.email.focus();
	  return false;
  }
  return true;
}

function zkontroluj_zpravu(theForm)
{
  var ret = '';
  ret = theForm.delka.value;
  if (theForm.nazev.value == "" || theForm.nazev.value.length < 2){
	  alert("Please, fill in the subject of the message.");
	  theForm.nazev.focus();
	  return false;
	}
  if (ret.indexOf(',') != -1)
  {
    alert("Please, devide decimal number with dot.");
    theForm.delka.focus();
    return false;
  }
  else
    return true;
}
function show(object) {
	if (document.getElementById && document.getElementById(object) != null)
	node = document.getElementById(object).style.display='inline';
	else if (document.layers && document.layers[object] != null)
	document.layers[object].display = 'inline';
	else if (document.all)
	document.all[object].style.display = 'inline';
}

function hide(object) {
	if (document.getElementById && document.getElementById(object) != null)
	node = document.getElementById(object).style.display='none';
	else if (document.layers && document.layers[object] != null)
	document.layers[object].display = 'none';
	else if (document.all)
	document.all[object].style.display = 'none';
}