// JavaScript Document
function on_off(val){
	if(val == "BOX1"){
		document.getElementById("BOX1").style.display = "block";
		document.getElementById("BOX2").style.display = "none";
		document.getElementById("BOX3").style.display = "none";
	}else if (val == "BOX2"){
		document.getElementById("BOX1").style.display = "none";
		document.getElementById("BOX2").style.display = "block";
		document.getElementById("BOX3").style.display = "none";
	}else if (val == "BOX3"){
		document.getElementById("BOX1").style.display = "none";
		document.getElementById("BOX2").style.display = "none";
		document.getElementById("BOX3").style.display = "block";
	}
}