function fnColorImage(id) {
		var img = document.getElementById(id);
		if (id == "strona-glowna") {
			img.src = "images/menu/sg-h.jpg";
		}
		else if(id == "o-nas") {
			img.src = "images/menu/o-nas-h.jpg";
		}
		else if(id == "kontakt") {
			img.src = "images/menu/kontakt-h.jpg";
		}
		else if(id == "mapka") {
			img.src = "images/menu/mapka-h.jpg";
		}
		else if(id == "rejestracja") {
			img.src = "images/menu/rejestracja-h.jpg";
		}
	}
        
	function fnGreyImage(id) {
		var img = document.getElementById(id);
		if (id == "strona-glowna") {
			img.src = "images/menu/sg.jpg";
		}
		else if(id == "o-nas") {
			img.src = "images/menu/o-nas.jpg";
		}
		else if(id == "kontakt") {
			img.src = "images/menu/kontakt.jpg";
		}
		else if(id == "mapka") {
			img.src = "images/menu/mapka.jpg";
		}
		else if(id == "rejestracja") {
			img.src = "images/menu/rejestracja.jpg";
		}
	}