function kontrolaJmena() {
    el=document.formular.jmeno;
    var pismena = /^[\D]+$/;
    if ((!el.value.match(pismena)) || (el.value == 0)) {
        el.style.background="#fc5e5e";
     return false;
    }else{
    el.style.background="#bfff50";
    return 1;
 }
}

function kontrolaEmailu(){
    el=document.formular.email;
  var mail = /^[_a-zA-Z0-9.-]+@[_a-zA-Z0-9.-]+[.]{1}[a-zA-Z]{2,4}$/;
  if(!el.value.match(mail)|| (el.value < 4)){
   el.style.background="#fc5e5e";
    return false;
 }else{
    el.style.background="#bfff50";
    return 1;
 }
}

function kontrolaTelefonu() {
    el=document.formular.telefon;
    var cisla = /^[+]{1}[0-9]{12}$/;
    var cisla2 = /^[+]{1}[0-9]{3}[ ]{1}[0-9]{3}[ ]{1}[0-9]{3}[ ]{1}[0-9]{3}$/;
    var cisla3 = /^[0-9]{9}$/;
    var cisla4 = /^[0-9]{3}[ ]{1}[0-9]{3}[ ]{1}[0-9]{3}$/;
    
    if ((el.value.match(cisla)) || (el.value.match(cisla2)) || (el.value.match(cisla3)) || (el.value.match(cisla4)))  {
    el.style.background="#bfff50";
    return 1;  
    }else{
    el.style.background="#fc5e5e";
     return false;
 }
}

function kontrolaTypu(){
var el=document.formular.typ;
var typ=document.formular.typ.selectedIndex;
   if (typ==0) {
   el.style.background="#fc5e5e";
   return false;
   }
   else {
   el.style.background="#bfff50";   
  return 1;
   }
}


function kontrolaMista() {
    el=document.formular.misto;
    var cisla = /^[0-9]+$/;
    if ((!el.value.match(cisla)) || (el.value == 0)) {
        el.style.background="#fc5e5e";
     return false;
    }else{
    el.style.background="#bfff50";
    return 1;
 }
}

function kontrolaData() {
    el=document.formular.datum;
    var cisla = /^[0-9]+[.]{1}[0-9]+[.]{1}[0-9]{4}$/;
     var cisla2 = /^[0-9]+[.]{1}[0-9]+[.]{1}$/;
    var cisla3 = /^[0-9]{4}[-]{1}[0-9]{2}[-]{1}[0-9]{2}$/;
    if ((el.value.match(cisla))  || (el.value.match(cisla2 )) || (el.value.match(cisla3))) {
    el.style.background="#bfff50";
    return 1;
    }else{
    el.style.background="#fc5e5e";
    return false;
 }
}

function kontrolaCasu(){
var el=document.formular.cas;
var cas=document.formular.cas.selectedIndex;
   if (cas==0) {
   el.style.background="#fc5e5e";
   return false;
   }
   else {
   el.style.background="#bfff50";   
  return 1;
   }
}