function fillRobotCheck(formid) {
  var rbt, rbtobj, rbtarea;

  rbt = document.getElementById("rbt-"+formid);
  rbtobj = document.getElementById("robotsid-"+formid);
  if (rbt!=null && rbtobj!=null) {
    switch (rbt.value) {
      case "1": rbtobj.value = "2"; break;
  		case "2": rbtobj.value = "white"; break;
  		case "3": rbtobj.value = "night"; break;
  		case "4": rbtobj.value = "day"; break;
    }

		rbtarea = document.getElementById("robots-1-"+formid);
		if (rbtarea!=null) rbtarea.style.display = "none";
		rbtarea = document.getElementById("robots-2-"+formid);
		if (rbtarea!=null) rbtarea.style.display = "none";
  }
}
//newsletter pole
function newsletterValue(input) {
	if (input.value == "your@email.com") input.value = "@";
}

//kontrola kontaktu
function checkKontakt(form) {
if (isEmpty(form.name.value)) {
	alert("Please, insert your name.");
	form.name.focus();
	return false
	}
else if (isEmpty(form.surname.value)) {
	alert("Please, insert your surname.");
	form.surname.focus();
	return false
	}
else if (isEmpty(form.company.value)) {
	alert("Please, insert name of your company.");
	form.company.focus();
	return false
	}
else if (isEmpty(form.position.value)) {
	alert("Please, insert your position in company.");
	form.position.focus();
	return false
	}
else if (isEmpty(form.street.value)) {
	alert("Please, insert your street.");
	form.street.focus();
	return false
	}
else if (isEmpty(form.city.value)) {
	alert("Please, insert your city.");
	form.city.focus();
	return false
	}
else if (isEmpty(form.postcode.value)) {
	alert("Please, insert your postcode.");
	form.postcode.focus();
	return false
	}
else if (!isEmail(form.email.value)) {
	alert("Please, insert your email.");
	form.email.focus();
	return false
	}
else if (isEmpty(form.text.value)) {
	alert("Please, insert your message.");
	form.text.focus();
	return false
	}
else return true;
}

//kontrola dotazniku
function checkDotaznik(form) {
if (isEmpty(form.jmeno.value)) {
	alert("Please, insert your name.");
	form.jmeno.focus();
	return false
	}
else if (isEmpty(form.firma.value)) {
	alert("Please, insert your position in company.");
	form.firma.focus();
	return false
	}
else if (isEmpty(form.telefon.value)) {
	alert("Please, insert your telephone.");
	form.telefon.focus();
	return false
	}
else if (!isEmail(form.email.value)) {
	alert("Please, insert your email.");
	form.email.focus();
	return false
	}
else return true;
}

// kontrola objednávky
function checkObjednavka(form) {
if (isEmpty(form.name.value)) {
	alert("Please, insert your name.");
	form.name.focus();
	return false
	}
else if (isEmpty(form.surname.value)) {
	alert("Please, insert your surname.");
	form.surname.focus();
	return false
	}
else if (isEmpty(form.telephone.value)) {
	alert("Please, insert your telephone.");
	form.telephone.focus();
	return false
	}
else if (!isEmail(form.email.value)) {
	alert("Please, insert your email.");
	form.email.focus();
	return false
	}
else return true;
}