function showHide(targetId, on) {
	var target;
	target = document.getElementById(targetId);
	hide = document.getElementById('hide-detail');
	show = document.getElementById('show-detail');
	if (on == 0) {
		target.style.display = "none";
		hide.style.display = "none";
		show.style.display = "inline";
    } else {
		target.style.display = "inline";
		hide.style.display = "inline";
		show.style.display = "none";
    }
	createCookie("detail", on, 365);
}
function getShowHide(targetId) {
  	var target;
 	target = document.getElementById(targetId);
 	if (target) {
		if (target.style.display == "none") return 0;
 		else return 1;
	} else {
		return NULL;
	}
}
function saveShowHide(e) {
	var cookie_show = readCookie("detail");
  	var onoff = cookie_show ? cookie_show : 1;
  	showHide('detail', onoff);
}