function f_clientHeight() {
	return f_filterResults (
		window.innerHeight ? window.innerHeight : 0,
		document.documentElement ? document.documentElement.clientHeight : 0,
		document.body ? document.body.clientHeight : 0
	);
	
//	return	window.innerHeight ? window.innerHeight : document.body.clientHeight ;
}


function f_filterResults(n_win, n_docel, n_body) {
	var n_result = n_win ? n_win : 0;
	if (n_docel && (!n_result || (n_result > n_docel)))
		n_result = n_docel;
	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}


function f_clientWidth() {
	return f_filterResults (
		window.innerWidth ? window.innerWidth : 0,
		document.documentElement ? document.documentElement.clientWidth : 0,
		document.body ? document.body.clientWidth : 0
	);
}


function f_scrollLeft() {
	return f_filterResults (
		window.pageXOffset ? window.pageXOffset : 0,
		document.documentElement ? document.documentElement.scrollLeft : 0,
		document.body ? document.body.scrollLeft : 0
	);
}
function f_scrollTop() {
	return f_filterResults (
		window.pageYOffset ? window.pageYOffset : 0,
		document.documentElement ? document.documentElement.scrollTop : 0,
		document.body ? document.body.scrollTop : 0
	);
}



var timer_banner;
var timer_SpecialOffers;
var ms=0;
var SpecialOfferID_Previous = 0;
var SpecialOfferID=1;
var SpecialOffersCount = 1;
var showing = '';
var hiding ='';
var opacityStep = 0;
var StoppingTimer = false;
var Karuzela = true;



var counter = 0;

function AlignBottomBanner() {
		
	var banner = document.getElementById('bottomBanner');
	if (!banner) return false;
	
	if (parseInt(navigator.appVersion)>3) {
	 if (navigator.appName=="Netscape") {
	  winW = window.innerWidth;
	  winH = window.innerHeight;
	 }
	 if (navigator.appName.indexOf("Microsoft")!=-1) {
	  winW = document.body.offsetWidth;
	  winH = document.body.offsetHeight;
	 }
	}			
	
	
	var str= f_scrollTop() + f_clientHeight() - 30;
	banner.style.display = 'block';	
	banner.style.top = str + 'px';
}


var interval = 100; // ms


function SwitchSpecialOffer( FForceThisID ) {
	var ok = false;
    
    if (SpecialOffersCount == 1) return false;
    
	if (ms>= 15 * (1000 / interval) && SpecialOfferID==1)	ok = true;
	if (ms>= 5 * (1000 / interval)  && SpecialOfferID==2)	ok = true;		
	if (ms>= 7 * (1000 / interval)  && SpecialOfferID==3)	ok = true;	
	if (ms>= 7 * (1000 / interval)  && SpecialOfferID==4)	ok = true;	
	if (ms>= 7 * (1000 / interval)  && SpecialOfferID==5)	ok = true;	    

//		window.status = ms;		

	if (ok || FForceThisID!=undefined) {
		
		ms = 0;
		
		SpecialOfferID_Previous = SpecialOfferID; 		
		SpecialOfferID++;
		
		if (FForceThisID!=undefined) {
      SpecialOfferID=FForceThisID;     
      StoppingTimer = true;
    } 
		
		if (SpecialOfferID>SpecialOffersCount) SpecialOfferID = 1;
		
		var s = 'SpecialOffer'+SpecialOfferID;
		var sp = 'SpecialOffer'+SpecialOfferID_Previous;		

		var so = document.getElementById(s);
		var spo = document.getElementById(sp);		
    	        			
			if (so) {
        showing = so;
        opacityStep = 0;
        SwitchTabs( SpecialOfferID, true );
      }
      if (spo) {
        hiding = spo;
        opacityStep = 0;
        SwitchTabs( SpecialOfferID_Previous, false );              
      }			    

	}	
	else {
  
  }
	
}
var sss = 1;


function ign_scrolltop()
{
	AlignBottomBanner();
	SpecialOffers();
	timer_banner = setTimeout("ign_scrolltop()",interval);
	
//  alert	(sss++);
}

function stoptimer()
{
	clearTimeout(timer_banner);
}


function SpecialOffers()
{
  // wychodzi
  if (StoppingTimer=='done') return false;

	ms++;
	SwitchSpecialOffer();
	

	if (showing!='' && hiding!='') {
    SetOpacity(showing, 0 + opacityStep*10, true);
    SetOpacity(hiding, 100 - opacityStep*10, false);
    
    opacityStep++;    
    
    if (opacityStep>=10) {
      SetOpacity(showing, 100, true);
      SetOpacity(hiding, 0, false);
      hiding = '';
      showing = '';
      if (StoppingTimer==true) StoppingTimer = 'done';
    }  
    
  }
	
//	timer_SpecialOffers = setTimeout("SpecialOffers()", 100);
}


function SetOpacity( item, opacity, show) {  
//  if (!show && item.style.display=='none') return false;
//  if (show && item.style.display=='none') return false;  

  item.style.display = 'block';
  
  if (opacity>=100) {
    opacity = 100;
    item.style.display = 'block';    
  }
  if (opacity<=0) {
    opacity = 0;
    item.style.display = 'none';    
  }

  item.style.filter = 'alpha(opacity='+opacity +')';
  item.style.opacity = opacity / 100;

  //item.style.-moz-opacity = opacity / 100;
//  item.setAttribute('style', '-moz-opacity: '+opacity / 100 + ';');
  
}


function SwitchTabs( FSpecialOfferID, ShowActive ) {

    // zakladki
    var ta = document.getElementById('SpecialOfferTAB'+FSpecialOfferID+'a');
    var ti = document.getElementById('SpecialOfferTAB'+FSpecialOfferID+'i');           
        
    if (ta && ti){
      
      ta.innerHTML = FSpecialOfferID;
      ti.innerHTML = '<a href="#" onclick="SwitchSpecialOffer('+FSpecialOfferID+'); return false;">'+FSpecialOfferID+'</a>';

          
    
      ta.style.left = 5 + (FSpecialOfferID - 1) * (25) + 'px';
      ti.style.left = 5 + (FSpecialOfferID - 1 ) * (25) + 'px';  

    
      if (ShowActive) {
        ta.style.display = 'block';
        ti.style.display = 'none';      
      } else {
        ta.style.display = 'none';
        ti.style.display = 'block';      
      }
    }    
        
}

// na poczatku ukrywam oferty specjalne inne niz SpecialOfferID
SwitchTabs( SpecialOfferID, true );

for(a=1; a<=9; a++) {

  		var s = 'SpecialOffer'+a;
  		var so = document.getElementById(s);
		  
      if (so) 
  		  if (a==SpecialOfferID) {
    		  SetOpacity(so, 100, true);
    		} else {
  		    SetOpacity(so, 0, true);        
        }
		
  		SwitchTabs( a, (a==SpecialOfferID) );
 
}

  ign_scrolltop(); 
  
if (!Karuzela) {
//  SwitchSpecialOffer (SpecialOfferID_ORG);
  StoppingTimer = 'done'; 
}  

//SpecialOffers()