function CB(id)
{
    var div = 'cb_' + id;

    if(document.getElementById(id).value == 'nie')
    {
        document.getElementById(div).style.backgroundPosition = '0 -22px';
        document.getElementById(id).value = 'tak';
    }
    else
    {
        document.getElementById(div).style.backgroundPosition = '0 0';
        document.getElementById(id).value = 'nie';
    }
}

function setCB(id) {

    var div = 'cb_' + id;
    if(document.getElementById(id).value == 'nie') {
        document.getElementById(div).style.backgroundPosition = '0 0px';
    }
    else {
        document.getElementById(div).style.backgroundPosition = '0 -22px';
    }

}

function showCBstate(ids) {
    for(var id in ids) {
        setCB(ids[id]);
    }
}

function addFileInput() {
    var maxuploads = 4;
    uploads++;
    if(uploads > maxuploads) {
        return;
    }
    if(uploads == maxuploads) {
        document.getElementById('addnextfileupload').style.display= 'none';
    }
    var cont = document.getElementById('fileupload');
    var newdiv = document.createElement('div');
    newdiv.innerHTML = '<div class="Nazwa">Dodaj zdjęcie:</div><div><input type="file" name="zdjecie' + uploads + '" value="" /></div>';

    cont.appendChild(newdiv);
}