var flag = false;
var drop = "div#drop";
var btn = "a#toggle";

$(document).ready(function() {
	hideArchive(drop);
	$("body").attr("id") == "month" ? hideItem() : showItem();
	$(btn).click(function() {
		flag ? hideArchive(drop, btn) : showArchive(drop, btn);
	});
});

function showArchive(target, button) {
	$(target).animate({height: "toggle"}, "fast");
	$(button + " img").attr("src", "http://www.kiyasuya.jp/photolog/images/archive_show.gif");
	flag = true;
}
function hideArchive(target, button) {
	$(target).animate({height: "toggle"}, "fast");
	$(button + " img").attr("src", "http://www.kiyasuya.jp/photolog/images/archive_hidden.gif");
	flag = false;
}
function showItem(){
	$("p#test").hide();
}
function hideItem(){
	$("p#test").show();
}