//-----------------------------------------------------
//closer
//-----------------------------------------------------

	var sliding = false;
	$(function(){
		if ( navigator.userAgent.indexOf('MSIE 6') != -1 ) {
			$('.closer a').click(function(){
				var target = $(this);
				var rel = target.attr('rel');
				target.parent().toggleClass('open');
				if ( target.text().indexOf('閉じる') != -1 ) {
					target.text(target.text().replace('閉じる','開く'));
				} else {
					target.text(target.text().replace('開く','閉じる'));
				}
				if ( $('#' + rel).css('display') == "none" ) {
					$('#' + rel).show();
				} else {
					$('#' + rel).hide();
				}
			});
		} else {
			$('.closer a').click(function(){
				if ( !sliding ) {
					sliding = true;
					var target = $(this);
					var rel = target.attr('rel');
					target.parent().toggleClass('open');
					if ( target.text().indexOf('閉じる') != -1 ) {
						target.text(target.text().replace('閉じる','開く'));
					} else {
						target.text(target.text().replace('開く','閉じる'));
					}
					$('#' + rel).slideToggle(function(){
						sliding = false;
					});
				}
			});
		}
		$('.closer a').each(function(){
			var target = $(this);
			var rel = target.attr('rel');
			if ( $('#' +rel).hasClass('prehide') ) {
				target.parent().toggleClass('open');
				if ( target.text().indexOf('閉じる') != -1 ) {
					target.text(target.text().replace('閉じる','開く'));
				}
			}
		});
	});