// Klikacia mapka CR
function mapa(kolik) {
  if(kolik < 8) {
    document.getElementById('mapkaCR').style.backgroundPosition = "0px -"+(kolik*160)+"px";
  } 
    else
  {
    document.getElementById('mapkaCR').style.backgroundPosition = "-200px -"+((kolik-7)*160)+"px";
  }
}
  
function checkSingle(j)
{
  box = eval("document.poptavka.k" + j); 
  box.checked = !box.checked;
}


function selectAll(){
  for (var i=0;i<document.forms['poptavka'].elements.length;i++)
  {
    var e=document.forms['poptavka'].elements[i];
    if ((e.name != 'selectAllBox') && (e.type=='checkbox'))
    {
      e.checked=document.forms['poptavka'].selectAllBox.checked;
    }
  }
}