/*
function Vypocet(what){
  var total_cena = 0;
  
  var cena = document.getElementById('cena_'+what);
  var sel = document.getElementById('pocet_'+what);
  //var sub_total_cena = document.getElementById('celkem_'+what).innerHTML;
    
  //cena = cena.replace(/[ ,-]/ig, '');
  document.getElementById('celkem_'+what).innerHTML=sel.options[sel.selectedIndex].value*cena;
  
  //document.getElementById('celkem_'+what) = total_cena+sel.options[sel.selectedIndex].value*cena;
/*  
  var sub_total_cena = document.getElementById('dosp_1_pristylka_total_cena');
  var sel = document.getElementById("dosp_1_pristylka_select");
  var cena = document.getElementById("dosp_1_pristylka_cena").innerHTML;
  cena = cena.replace(/[ ,-]/ig, '');
  sub_total_cena.innerHTML=sel.options[sel.selectedIndex].value*cena;
  total_cena = total_cena+sel.options[sel.selectedIndex].value*cena;
  
  
  var sub_total_cena = document.getElementById('dite_pevne_luzko_total_cena');
  var sel = document.getElementById("dite_pevne_luzko_select");
  var cena = document.getElementById("dite_pevne_luzko_cena").innerHTML;
  cena = cena.replace(/[ ,-]/ig, '');
  sub_total_cena.innerHTML=sel.options[sel.selectedIndex].value*cena;
  total_cena = total_cena+sel.options[sel.selectedIndex].value*cena;
    
  var total = document.getElementById('cena_celkem');
  total.innerHTML = total_cena;

}
*/