function set_status(a) {
  window.status=a;
}

function get_object(name) {
  if (document.getElementById) {
    return document.getElementById(name);
  } else if (document.all) {
    return document.all[name];
  } else if (document.layers) {
    return document.layers[name];
  }
}

function setStyle(id, style, value) {
  get_object(id).style[style] = value;
}

function trim(text) {
	return String(text).replace(/^\s+|\s+$/g,"");
}

function vyhladavanie() {
  if (trim(document.vyhladavanie_form.hladany_text.value)=="zadaj text ..." || trim(document.vyhladavanie_form.hladany_text.value)=="") {
    alert("Zadaj hľadaný text.");
    document.vyhladavanie_form.hladany_text.focus();
  } else {
    if (trim(document.vyhladavanie_form.hladany_text.value).length<3) {
      alert("Hľadaný text musí byť dlhý aspoň 3 znaky.");
      document.vyhladavanie_form.hladany_text.value=trim(document.vyhladavanie_form.hladany_text.value);
    } else {
      if (document.vyhladavanie_form.typ[0].checked) {
        document.vyhladavanie_radiask.hladany_text.value=trim(document.vyhladavanie_form.hladany_text.value);
        document.vyhladavanie_radiask.submit();
      } else if (document.vyhladavanie_form.typ[1].checked) {
        document.vyhladavanie_google.q.value=trim(document.vyhladavanie_form.hladany_text.value);
        document.vyhladavanie_google.submit();
      }
    }
  }
}

function hladany_text_clear(i) {
  if (i==1 && trim(document.vyhladavanie_form.hladany_text.value)=="zadaj text ...") {
    document.vyhladavanie_form.hladany_text.value="";
    setStyle("hladany_text","color","#000000");
  }
  if (i==0 && trim(document.vyhladavanie_form.hladany_text.value)=="") {
    setStyle("hladany_text","color","#888888");
    document.vyhladavanie_form.hladany_text.value="zadaj text ...";
  }
}


function pridaj_hlas(hlas) {
  document.anketa.odpoved.value=hlas;
  document.anketa.submit();
}

function format_overdiv_obrazku() {
  if (navigator.appName=="Microsoft Internet Explorer") {
    if (document.documentElement && typeof document.documentElement.style.maxHeight!="undefined") return "png";
    else return "gif";
  } else {
    return "png";
  }
}

var menu_bublina_enabled=1;
function menu_bublina(text) {
  if (menu_bublina_enabled==1) {
    var overdiv=get_object("overdiv");
    if (text!="") {
      overdiv.style.width=200;
      overdiv.style.height=40;
      overdiv.style.background="url('/layout/overdiv_bg_200x40."+format_overdiv_obrazku()+"') no-repeat";
      overdiv.innerHTML="<div style='padding: 6px;'>"+text+"</div>";
      overdiv_show("overdiv");
    } else {
      overdiv_hide("overdiv");
    }
  }
}

function pocuvanost_graf_bublina(text) {
  var overdiv=get_object("overdiv");
  if (text!="") {
    overdiv.style.width=170;
    overdiv.style.height=55;
    overdiv.style.background="url('/layout/overdiv_bg_170x55."+format_overdiv_obrazku()+"') no-repeat";
    overdiv.innerHTML="<div style='padding: 6px;'>"+text+"</div>";
    overdiv_show("overdiv");
  } else {
    overdiv_hide("overdiv");
  }
}