/* JavaScript Document ****************************************************************************************************
    DOCUMENT CHARSET ENCODING:    UTF8

    Autor           :  Lukáš Ručka, Matěj Majnuš, Jiří Kupka
    Aktualizováno k :  2008-12-09
    Verze           :  3.00
    Datum vzniku    :  2008-12-09
**************************************************************************************************************************/

function zobraz(that){
  var div = window.document.getElementById(that);
  div.className="zobrazeny";
  return false;
}

function prezentace_odesli(that){
  var divy = that.getElementsByTagName("div");

  var firma = 0;
  var kosoba = 0;
  var tel = 0;
  var mail = 0;
  var ida = 0;

  for (var i = 0; i < divy.length; i++){
    var ins = divy[i].getElementsByTagName("input");
    for (var j = 0; j < ins.length; j++){
      switch(ins[j].name){
        case "firma": firma=ins[j]; break;
        case "kosoba": kosoba=ins[j]; break;
        case "tel": tel=ins[j]; break;
        case "email": mail=ins[j]; break;
        case "ida": ida=ins[j]; break;
      }
    }
  }

  retak = true;
  if ((mail.value != "") && (((mail.value.indexOf('@') == -1) || (mail.value.lastIndexOf('.') <= mail.value.indexOf('@'))))){
    alert(window.document.getElementById('err_mail').value);
    retak = false;
  }

  if (!((tel.value != "") || (mail.value != "")))
  { alert(window.document.getElementById('err_nolo').value); retak = false; }

  return retak;
}