function menuSub(id,ex){
	if(document.all || document.getElementById){
		if(document.all){
			obj = document.all( 'mb' + id ).style;
			obj2 = document.all( 'm' + id );
		}else if(document.getElementById){
			obj = document.getElementById( 'mb' + id ).style;
			obj2 = document.getElementById( 'm' + id );
		}
		if(obj.display == "block"){
			obj.display = "none";
			obj2.setAttribute('className', 'closed '+ex);
			obj2.setAttribute('class', 'closed '+ex);
		}else if(obj.display == "none"){
			obj.display = "block";
			obj2.setAttribute('className', 'open '+ex);
			obj2.setAttribute('class', 'open '+ex);
		}
	}
}

madrs1 = "mail";
madrs2 = "packcenter.gr.jp";
madrs = madrs1 + "@" + madrs2;
function mailto()
{
  location.href = "mai" + "lto:" + madrs;
}