function toggle(id) {
  var state = document.getElementById(id).style.display;
	if (state == 'block') {
	 document.getElementById(id).style.display = 'none';
	 document.getElementById('arrow').src = '/artwork/arrow.gif';
	} else {
   document.getElementById(id).style.display = 'block';
   document.getElementById('arrow').src = '/artwork/rotated_arrow.gif';
	}
}


img = new Array();
i = 0;
img[i] = new Image(); img[i].src = "/artwork/pics/21.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/22.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/25.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/32.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/33.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/36.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/37.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/38.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/39.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/40.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/41.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/52.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/53.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/54.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/55.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/56.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/57.jpg";i++;
img[i] = new Image(); img[i].src = "/artwork/pics/58.jpg";i++;


function OtevriFormular(){
  posX = document.body.clientWidth;
  posY = document.body.clientHeight;

  w = posX;
  h = posY;
  
  posX = Math.round((posX - 419) / 2);
  posY = Math.round((posY - 351) / 2);
 

  eval("window.open('casomil-dotaznik/casomil_dotaznik_14.php', 'Dotaznik', 'width="+w+",height="+h+",top="+posY+",left="+posX+",scrollbars, resizable')");  
}


function WinMapOpen(){
  posX = document.body.clientWidth;
  posY = document.body.clientHeight;

  posX = Math.round((posX - 419) / 2);
  posY = Math.round((posY - 351) / 2);


  eval("window.open('mapwindow.php', 'KinaAtlas_Mapa', 'width=410,height=351,top="+posY+",left="+posX+"')");
}

function CheckFormNapiste(form){
  re = new RegExp("^[^.]+(\.[^.]+)*@([^.]+[.])+[a-z]{2,3}$");

  if(form.jp.value == ""){
    window.alert("Jméno a příjmení musíte vyplnit!");
    form.jp.focus();
    return false;
  }
  else if(form.email.value == ""){
    window.alert("E-mail musíte vyplnit!");
    form.email.focus();
    return false;
  }
  else if(form.zprava.value == ""){
    window.alert("Dotaz musíte vyplnit!");
    form.zprava.focus();
    return false;
  }
  else if(!re.test(form.email.value)){
    window.alert("E-mail není adresou elektronické pošty!");
    form.email.focus();
    return false;
  } else {
    return true;
  }
}


function CheckFormCasomil(form){
  
  if(form.a_popis.length > 60){
    window.alert("Maximálně lze zadat 60 znaků");
    form.a_popis.focus();
    return false;
  } else {
    return true;
  }
}


function winOpen(id){
  eval("window.open('/inc/info_seminar.php?id=" + id + "', 'info_seminar" + id + "', 'width=400,height=200,top=50,left=50')");
}

function preview(filename) {
  document.images["prw"].src = filename;
}