(function($) {
	$.fn.extend( {
		popup : function() {
			var _s = 0;
			var _id = '';

			_id = $(this).attr('href');

			$(this).attr('href', $(this).attr('href') + '-popup');

			function close() {
				if (_s == 1) {
					$(_id).fadeOut("fast");
					$(_id + "__bg").hide();
					$(_id + "__bg").remove();
					_s = 0;
				}
			}

			this.click(function(e) {
				$(this).before('<div id="' + _id.substring(1, _id.length) + '__bg"></div>');

				$(_id + "__bg").css( {
					"display" : "none",
					"position" : "fixed",
					"_position" : "absolute",
					"height" : "100%",
					"width" : "100%",
					"top" : "0",
					"left" : "0",
					"background" : "#000",
					"border" : "1px solid #cecece",
					"z-index" : "1",
					"opacity" : "0.01"
				});

				$(_id + "__bg").show();
				$(_id).fadeIn("slow");

				$(_id + "__bg").click(function() {
					close();
				});

				$(document).keydown(function(e) {
					if (e.keyCode == 27 && _s == 1) {
						close();
					}
				});

				$(_id).find('a[href=#close]').each(function () {
					$(this).click(function () {
						close();
					});
				});
				
				$(_id + ' .btn-link a').html($(this).html().replace(/▼/, '&#9650'));
			
				_s = 1;
			});
		}
	});
})(jQuery);