var ObjPopupId = '';
var ScreenWidth = screen.width;

function obj(Id) { if(Id!='' && document.getElementById(Id)) return document.getElementById(Id); else return false; }
function objStyle(Id) { if(Id!='' && document.getElementById(Id)) return document.getElementById(Id).style; else return false; }
function objHide(Id) { if(Id!='' && document.getElementById(Id)) document.getElementById(Id).style.display='none'; }
function objShow(Id) { if(Id!='' && document.getElementById(Id)) document.getElementById(Id).style.display='block'; }
function isObj(Id) { if(Id!='' && document.getElementById(Id)) return true; else return false; }
function bgChange(Id, ImgSrc) { objStyle(Id).backgroundImage = "url("+ImgSrc+")"; }
function objPopup(Id){
  objHide(ObjPopupId);
  if( objStyle(Id).display=='block' ) objStyle(Id).display='none';
  else  objStyle(Id).display='block';
  ObjPopupId = Id;
}

function f_start()
{
  var FooterTop = $('str_dol').getPosition().y;
  var ContentHeight = $('srodek').getSize().y;
  ( ScreenWidth<1282 ) ? bgChange('str_srodek', '/images/bg2_1280.jpg') : bgChange('str_srodek', '/images/bg2.jpg');
  ( ContentHeight<520 ) ? bgChange('srodek', '/images/bg_srodek_550.jpg') : bgChange('srodek', '/images/bg_srodek.jpg');
  objStyle('str_srodek').height = FooterTop - 111 +'px';
}

/*****************************/

function showLogin()
{
  var IdLoginText = 'logowanie';
  var IdLoginForm = 'logowanie_form';
  var fxText = new Fx.Morph(IdLoginText, { duration: 600, transition: Fx.Transitions.Sine.easeOut,
    onComplete: function(){ $(IdLoginText).setStyle('display','none'); } });
  var fxForm = new Fx.Morph(IdLoginForm, { duration: 1200, transition: Fx.Transitions.Sine.easeOut });
  $(IdLoginForm).setStyles({ 'opacity':0, 'display':'block' });
  fxText.start({ 'opacity':[1,0] });
  fxForm.start({ 'opacity':[0,1] });
}

function niceselectChange(Id, Value)
{
  objHide(Id);
  obj(Id+'_value').innerHTML = Value;
  obj(Id+'_input').value = Value;
}

document.addEvent('domready', function(){
  $$('.niceselect div').each( function(el){

    el.addEvents({
      'mouseenter': function(){
        el.setStyles({
          'backgroundColor':'#ab0e0e',
          'color':'#ffffff'
        });
      },
      'mouseleave': function(){
        el.setStyles({
          'backgroundColor':'transparent',
          'color':'#333333'
        });
      }
    });

  });
});