function pokaz_ukryj_zap(pokaz, ukryj, ukryj2, ukryj3, ukryj4, strona) { 

	document.getElementById(pokaz).style.visibility = "visible";
	document.getElementById(ukryj).style.visibility = "hidden";
	document.getElementById(ukryj2).style.visibility = "hidden";
	document.getElementById(ukryj3).style.visibility = "hidden";
	document.getElementById(ukryj4).style.visibility = "hidden";

	document.getElementById(pokaz+"_zak").style.opacity = "1.0"; document.getElementById(pokaz+"_zak").style.filter="alpha(opacity='100')";
	document.getElementById(ukryj+"_zak").style.opacity = "0.3"; document.getElementById(ukryj+"_zak").style.filter="alpha(opacity='30')";
	document.getElementById(ukryj2+"_zak").style.opacity = "0.3"; document.getElementById(ukryj2+"_zak").style.filter="alpha(opacity='30')";
	document.getElementById(ukryj3+"_zak").style.opacity = "0.3"; document.getElementById(ukryj3+"_zak").style.filter="alpha(opacity='30')";
	document.getElementById(ukryj4+"_zak").style.opacity = "0.3"; document.getElementById(ukryj4+"_zak").style.filter="alpha(opacity='30')";
	
	zap_height = document.getElementById(pokaz).offsetHeight;

	//if (strona == "strona_zapowiedzi") {document.getElementById("zapowiedzi").style.height = zap_height+30+"px";};

	document.getElementById("zapowiedzi").style.height = zap_height+30+"px";
}

function pokaz_ukryj_zap_mouseout(mouseon) { 

	document.getElementById(mouseon+"_zak").style.filter="alpha(opacity='0')";

	if (document.getElementById(mouseon).style.visibility == "visible") {document.getElementById(mouseon+"_zak").style.opacity = "1.0"; document.getElementById(mouseon+"_zak").style.filter="alpha(opacity='100')";} else{

		document.getElementById(mouseon+"_zak").style.opacity = "0.3"; document.getElementById(mouseon+"_zak").style.filter="alpha(opacity='30')";
	};
}