function bgi (image, id) {
	var element = document.getElementById(id);
	element.style.backgroundImage = "url("+image+")";
}

function bmen (id1, id2, id3, id4) {
	var element1 = document.getElementById(id1);
	var element2 = document.getElementById(id2);
	var element3 = document.getElementById(id3);
	var element4 = document.getElementById(id4);
	element1.style.display = "none";
	element2.style.display = "none";
	element3.style.display = "none";
	element4.style.display = "none";
}

function bspmen (id1, id2, id3, id4) {
	var element1 = document.getElementById(id1);
	var element2 = document.getElementById(id2);
	var element3 = document.getElementById(id3);
	var element4 = document.getElementById(id4);
	element1.style.color = "#ffffff";
	element2.style.color = "#ffffff";
	element3.style.color = "#ffffff";
	element4.style.color = "#ffffff";
}