function show(boxid){
	document.getElementById(boxid).style.display="block";
}

function hide(boxid){
	document.getElementById(boxid).style.display="none";
}

function toggle(boxtoshow, boxtohide){
	document.getElementById(boxtoshow).style.display="block";
	document.getElementById(boxtohide).style.display="none";
}

function lightboxon (gray, light) {
	document.getElementById(light).style.display="block";
	document.getElementById(gray).style.display="block";
}

function openone(box1, box2, box3, box4){
	document.getElementById(box1).style.display="block";
	document.getElementById(box2).style.display="none";
	document.getElementById(box3).style.display="none";
	document.getElementById(box4).style.display="none";
}

function closeall(light, gray, box1, box2, box3, box4){
	document.getElementById(light).style.display="none";
	document.getElementById(gray).style.display="none";
	document.getElementById(box1).style.display="none";
	document.getElementById(box2).style.display="none";
	document.getElementById(box3).style.display="none";
	document.getElementById(box4).style.display="none";
}