var kon = false;

function  Zmien(par)
 { 
 if (kon)
    {
     document.getElementById("rek").style.left = (document.body.offsetWidth/2 - 265) + "px";	
     document.getElementById("rek").style.height = (document.body.offsetHeight/6) + "px";	
     document.getElementById("rek").style.display = "none";
     document.getElementById("obr1").style.display = "none";
     document.getElementById("obr2").style.display = "block";
     document.getElementById("tresc").style["right"] = (screen.width/2 - 265) + "px";	
     if(par)kon= false;
     } 
 else 
    {
    document.getElementById("rek").style.left = (document.body.offsetWidth/2 - 265) + "px";	
    document.getElementById("rek").style.display = "block";	
    document.getElementById("obr1").style.display = "block";
    document.getElementById("obr2").style.display = "none";	
    document.getElementById("tresc").style["right"] = (screen.width/2 - 265) + "px";;	
    if(par)kon = true;
    }
}
   
function ruch() 
	{
	if(document.all) 
		{
		if (document.documentElement && document.documentElement.scrollTop)
 			{
			pozycja = document.documentElement.scrollTop;
			}
		else if (document.body) 
			{
			pozycja = document.body.scrollTop;
			}
		document.getElementById("tresc").style.pixelTop = pozycja; 
		document.getElementById("rek").style.pixelTop = document.body.offsetHeight/6+pozycja-90;}
	else 
		{
		document.getElementById("tresc").style.top = (window.pageYOffset+"px"); 
		document.getElementById("rek").style.top = ((document.body.offsetHeight/6)+window.pageYOffset-90+"px");
		} 
setTimeout("ruch()",5);
}
ruch();
Zmien(1);