function js(i){
	js(i);
}
function js(i){
	switch(i){
		case 1:
		document.getElementById("js").style.display="block";
		document.getElementById("js1").style.display="none";
		document.getElementById("js2").style.display="none";
		break;
		case 2:
		document.getElementById("js").style.display="none";
		document.getElementById("js1").style.display="block";
		document.getElementById("js2").style.display="none";
		break;
		case 3:
		document.getElementById("js").style.display="none";
		document.getElementById("js1").style.display="none";
		document.getElementById("js2").style.display="block";
		break;
			}
}