var cyklovat = 1;
var timeoutCyklovani = 5000;
var timeoutCyklovaniPozadi = 5000;
var delayAfterClick = 20000;
var afterClick;
var selZalozka = 1;
var zvyraznene_menu = false;
var aktual_vrch_pozadi = 0;


var more_information = new Array();
more_information[0] = 6;
more_information[1] = 17;
more_information[2] = 18;
more_information[3] = 58;
more_information[4] = 59;
var url_more_information_letadla = 'index.php?sec=6';
var url_more_information_cislo = 0; 

var cisla = new Array();
cisla[0] = 1;
cisla[1] = 2;
cisla[2] = 3;
cisla[3] = 4;
cisla[4] = 5;

var podmenu_bkg = new Array();
podmenu_bkg[0] = 5;
podmenu_bkg[1] = 19;
podmenu_bkg[2] = 26;
podmenu_bkg[3] = 38;
podmenu_bkg[4] = 45;
podmenu_bkg[5] = 77;
podmenu_bkg[6] = 95;
podmenu_bkg[7] = 49;
podmenu_bkg[8] = 53;
//podmenu_bkg[8] = 9;


function set_height() {
  if (document.getElementById('tabulka_letadel') && document.getElementById('novinky') && document.getElementById('mapka')) {
    var prvni = document.getElementById('tabulka_letadel').offsetHeight;
    var druhy = document.getElementById('novinky').offsetHeight;
    var treti = document.getElementById('mapka').offsetHeight;
    
    var max = 0;
    if (prvni>druhy && prvni>treti)
      max = prvni;
    if (druhy>prvni && druhy>treti)
      max = druhy;
    if (treti>prvni && treti>druhy)
      max = treti;
    
    document.getElementById('tabulka_letadel').style.height = max;
    document.getElementById('novinky').style.height = max;
    document.getElementById('mapka').style.height = max;
  } 
}

function get_id_bkg(id) {
  for (i=0; i<podmenu_bkg.length; i++)
    if (id==podmenu_bkg[i])
      return i+1;

}

function show_podmenu(id, podstranka, id_root) {
  var pod='';

  if (id!=id_root)
    //hide_root_podmenu(id, podstranka, id_root);
    //alert(get_id_bkg(id_root));
    hide_podmenu(id_root, podstranka, id, get_id_bkg(id_root));
    
  if (zvyraznene_menu==false)
    return;
  
  if (podstranka)
    pod = 'podstranka_';
    
  if (document.getElementById('main_menu_'+id)) {
    document.getElementById('main_menu_'+id).style.backgroundImage = 'url(./images/'+pod+'menu_on.gif)';
    document.getElementById('main_menu_'+id).style.width = '210px';
  }
  if (id_root!=-2 && document.getElementById('submenu_'+id)) {
    document.getElementById('submenu_'+id).style.visibility = 'visible';
    document.getElementById('submenu_'+id).style.display = 'inline';
  }
}

function hide_podmenu(id, podstranka, id_root, bkg_id) {
  var pod='';
  
  
  if (podstranka)
    pod = 'pod';
  if (id!=id_root && document.getElementById('main_menu_'+id)) {
      document.getElementById('main_menu_'+id).style.backgroundImage = 'url(./images/'+pod+'menu/menu_off_'+bkg_id+'.jpg)';
    document.getElementById('main_menu_'+id).style.width = '230px';
  }
  if (document.getElementById('submenu_'+id)) {
    document.getElementById('submenu_'+id).style.visibility = 'hidden';
    document.getElementById('submenu_'+id).style.display = 'none';
  }
}

function zvyrazni_podmenu(id) {
  //if (zvyraznene_menu==false)
  //  return;
  if (document.getElementById('podmenu_'+id)) {
    //document.getElementById('podmenu_'+id).style.backgroundImage = 'url(\'./images/podmenu_bg_on.gif\')';
    document.getElementById('podmenu_'+id).style.backgroundColor = '#089801';
    //alert(document.getElementById('podmenu_'+id).style.backgroundUrl);
    //document.getElementById('podmenu_'+id).style.Cursor = 'hand pointer';
  }
}

function odvyrazni_podmenu(id) {
  if (document.getElementById('podmenu_'+id)) {
    //document.getElementById('podmenu_'+id).style.backgroundImage = 'url(\'./images/podmenu_bg_off.gif\')';
    document.getElementById('podmenu_'+id).style.backgroundColor = '';
    //document.getElementById('podmenu_'+id).style.Cursor = '';
    //document.getElementById('podmenu_'+cislo).style.height = '18';
  }
}

function deaktive_info_letadlo(cislo, img_off) {
  if (document.getElementById('info_letadlo_'+cislo)) {
    document.getElementById('info_letadlo_'+cislo).style.backgroundImage = 'url('+img_off+')'; 
    document.getElementById('info_letadlo_'+cislo).style.height = '15px';
    document.getElementById('info_letadlo_'+cislo).style.fontWeight = 'normal';
  }
  if (document.getElementById('ramecek_'+cislo)) {
    document.getElementById('ramecek_'+cislo).style.borderBottom = '1px rgb(187,208,235) solid'; 
  }
  if (document.getElementById('info_letadla_'+cislo)) {
    document.getElementById('info_letadla_'+cislo).style.visibility = 'hidden'; 
    document.getElementById('info_letadla_'+cislo).style.display = 'none';
  }
  if (document.getElementById('info_letadlo_'+cislo+'_table')) {
    document.getElementById('info_letadlo_'+cislo+'_table').style.fontWeight = 'normal';
  }
  var i;
  for (i=0; i<=3; i++) {
    if (document.getElementById('sipka_dolu_'+i)) {
      document.getElementById('sipka_dolu_'+i).style.visibility = 'hidden';
    }
  }
}

function click_info_letadla(div, cislo, img_on, img_off) {
  //alert(div.style.backgroundImage);
  var i;
  for (i=1; i<=cisla.length+1; i++)
    if (i!=cislo)
      deaktive_info_letadlo(i, img_off);
  div.style.backgroundImage = 'url('+img_on+')';
  div.style.fontWeight = 'bold';
  if (document.getElementById('ramecek_'+cislo)) {
    document.getElementById('ramecek_'+cislo).style.borderBottom = '0px'; 
    //document.getElementById('ramecek_'+cislo).style.paddingLeft = '1px';
  }
  if (document.getElementById('info_letadla_'+cislo)) {
    document.getElementById('info_letadla_'+cislo).style.visibility = 'visible'; 
    document.getElementById('info_letadla_'+cislo).style.display = 'block';
  }
  if (document.getElementById('sipka_dolu_'+cislo)) {
      document.getElementById('sipka_dolu_'+cislo).style.visibility = 'visible';
  }
  if (document.getElementById('info_letadlo_'+cislo+'_table')) {
    document.getElementById('info_letadlo_'+cislo+'_table').style.fontWeight = 'bold';
  }
  if (document.getElementById('info_letadlo_'+cislo)) {
    //document.getElementById('info_letadlo_'+cislo).style.height = '18px';
  }  
  url_more_information_letadla = 'index.php?sec='+more_information[cislo-1];
}

function afterClickZalozka() {
  cyklovat = 0;
  clearTimeout(afterClick);
  afterClick = setTimeout("cyklovat=1", delayAfterClick);
}

function smycka_letadla(cislo) {
  if (cislo<0 || cislo>cisla.length-1)
    cislo = 0;
  if (document.getElementById('info_letadlo_'+cisla[cislo])) {
    if (cyklovat!=0)
    click_info_letadla(document.getElementById('info_letadlo_'+cisla[cislo]), cisla[cislo], 'images/zalozka_off_gradient.gif', 'images/zalozka_aktive_gradient.gif');
  }
  setTimeout("smycka_letadla("+(++cislo)+");", timeoutCyklovani);
}

pozadi = new Array();
pozadi[0] = 'url(images/products/l410.jpg)';
//pozadi[1] = 'url(images/products/l420.jpg)';
pozadi[1] = 'url(images/products/l410.jpg)';
pozadi[2] = 'url(images/products/l13.jpg)';
pozadi[3] = 'url(images/products/l23.jpg)';
pozadi[4] = 'url(images/products/l33.jpg)';


function change_vrch_pozadi() {
  if (aktual_vrch_pozadi<0 || aktual_vrch_pozadi>pozadi.length-1)
    aktual_vrch_pozadi = 0;
  if (document.getElementById('vrch')) {
    var vrch_podstranka = document.getElementById('vrch');
    vrch.style.backgroundImage = pozadi[aktual_vrch_pozadi];   
  }
  aktual_vrch_pozadi++;
}

function smycka_vrch_pozadi() {
  if (document.getElementById('vrch'))
    change_vrch_pozadi();

  setTimeout("smycka_vrch_pozadi();", timeoutCyklovaniPozadi);
}

function deaktivate_mapka_zalozka(cislo, img_off) {
if (document.getElementById('mapka_'+cislo)) {
    document.getElementById('mapka_'+cislo).style.backgroundImage = 'url('+img_off+')'; 
    document.getElementById('mapka_'+cislo).style.height = '15px';
    document.getElementById('mapka_'+cislo).style.fontWeight = 'normal';
  }
  if (document.getElementById('ramecek_mapka_'+cislo)) {
    document.getElementById('ramecek_mapka_'+cislo).style.borderBottom = '1px rgb(187,208,235) solid'; 
  }
  if (document.getElementById('info_mapka_'+cislo)) {
    document.getElementById('info_mapka_'+cislo).style.visibility = 'hidden'; 
    document.getElementById('info_mapka_'+cislo).style.display = 'none';
  }
}

function click_mapka_zalozka(div, cislo, img_on, img_off) {
  deaktivate_mapka_zalozka(1, img_off);
  deaktivate_mapka_zalozka(2, img_off);
  
  div.style.backgroundImage = 'url('+img_on+')';
  div.style.fontWeight = 'bold';
  if (document.getElementById('ramecek_mapka_'+cislo)) {
    document.getElementById('ramecek_mapka_'+cislo).style.borderBottom = '0px'; 
    //document.getElementById('ramecek_'+cislo).style.paddingLeft = '1px';
  }
  if (document.getElementById('info_mapka_'+cislo)) {
    document.getElementById('info_mapka_'+cislo).style.visibility = 'visible'; 
    document.getElementById('info_mapka_'+cislo).style.display = 'block';
  }
  if (document.getElementById('mapka_'+cislo+'_table')) {
    document.getElementById('mapka_'+cislo+'_table').style.fontWeight = 'bold';
  }
}


  function kontrola_formNovinari(){

    var f = document.forms["formNovinari"];
    var mail = "^[_a-zA-Z0-9\.\-]+@[_a-zA-Z0-9\.\-]+[\.]{1}[a-zA-Z]{2,4}$";

    if (f.name.value == ""){
      alert("Please, enter your name.");
      f.name.focus();
      return false;
    }

    if (f.email.value == ""){
      alert("Please, enter your email.");
      f.email.focus();
      return false;
    }

    if (!f.email.value.match(mail)) {
      alert ("Please , enter valid email.");
      f.email.focus();
      return false;
    }

    if (f.phone.value == ""){
      alert("Please, enter your phone.");
      f.phone.focus();
      return false;
    }

    if (f.serial.value == ""){
      alert("Please, enter your serial.");
      f.serial.focus();
      return false;
    }

    if (f.editors_office.value == ""){
      alert("Please, enter your editor's office.");
      f.editors_office.focus();
      return false;
    }

    return true;

  }