function CheckZbroj()
{
    var br1 = document.getElementById("broj1");
    var br2 = document.getElementById("broj2");
    var zbroj = document.getElementById("kontrola");
    var rez = document.getElementById("rez_kontrola");
    var btnSubmit = document.getElementById("potvrdi");

    var x = parseInt(br1.innerHTML) + parseInt(br2.innerHTML);

    if(zbroj.value.length > 0)
    {
        var z = parseInt(zbroj.value);

        if(z == x)
        {
            rez.innerHTML = "OK";
            rez.style.color = '#00CC00';
             btnSubmit.disabled = false;
        }
        else
        {
            rez.innerHTML = "Sbagliato";
            rez.style.color = '#CC0000';
            btnSubmit.disabled = true;
        }
    }
    else
    {
        rez.innerHTML = "Inserire un valore";
        rez.style.color = '#CC0000';
         btnSubmit.disabled = true;
    }
 
}

function CheckPrijavljujemo()
{
    var btnSubmit = document.getElementById("potvrdi");
    
    var cb1 = document.getElementById("kampkucica");
    var cb2 = document.getElementById("sator");
    var cb3 = document.getElementById("pas");
    var cb4 = document.getElementById("karavan");
    var cb5 = document.getElementById("auto");
    var cb6 = document.getElementById("motor");
    var cb7 = document.getElementById("kombi");
    var cb8 = document.getElementById("autobus");
    var cb9 = document.getElementById("bicikl");
    var cb10 = document.getElementById("struja");

    var brojac = 0;

    if(cb1.checked == true)
        brojac++;
     if(cb2.checked == true)
        brojac++;
     if(cb3.checked == true)
        brojac++;
     if(cb4.checked == true)
        brojac++;
     if(cb5.checked == true)
        brojac++;
     if(cb6.checked == true)
        brojac++;
     if(cb7.checked == true)
        brojac++;
     if(cb8.checked == true)
        brojac++;
    if(cb9.checked == true)
        brojac++;
    if(cb10.checked == true)
        brojac++;

    if(brojac > 0)
       btnSubmit.disabled = false;
    else
        btnSubmit.disabled = true;

}

function DisableSubmit()
{
     var btnSubmit = document.getElementById("potvrdi");
     btnSubmit.disabled = true;
}