// JavaScript Document
(function($) {

	$.fn.slide = function() {

		var $that = $(this);

		var m, k, x, y = 0;

		for ( var i = 0; i < $that.children().children().children().length; i++) {

			if (i == 0) {

				$that.find('.r_focus a').first().before(
						$('<span class="r_current"></span>'));

			} else {

				$that.find('.r_focus a').first().before($('<span></span>'));

			}

		}

		var n = $that.children().eq(1).children().length - 1;

		$that
				.children()
				.eq(1)
				.children()
				.click(
						function() {

							m = $(this).index();

							clearInterval(k);

							if (m == n
									&& $that.children().eq(0).scrollLeft() < $that
											.children().eq(0).children()
											.width()
											- $that.children().eq(0).width()) {

								k = setInterval(
										function() {

											x = $that.children().eq(0)
													.scrollLeft();

											x += 10;

											y += 10;

											$that.children().eq(0)
													.scrollLeft(x);

											if (y
													% $that.children().eq(0)
															.width() == 0) {

												stopScroll();

											}

										}, 5);

							} else if (m == (n - 1)
									&& $that.children().eq(0).scrollLeft() >= 0) {

								k = setInterval(
										function() {

											x = $that.children().eq(0)
													.scrollLeft();

											x -= 10;

											y -= 10;

											$that.children().eq(0)
													.scrollLeft(x);

											if (y
													% $that.children().eq(0)
															.width() == 0) {

												stopScroll();

											}

										}, 5);

							}

							return false;

							function stopScroll() {

								$that.children().eq(1).children('a').eq(0)
										.addClass('r_left');

								$that.children().eq(1).children('a').eq(1)
										.addClass('r_right');

								if ($that.children().eq(0).scrollLeft() >= ($that
										.children().eq(0).width())
										* ($that.children().eq(0).children()
												.children().length - 1)) {

									$that.children().eq(1).children('a').eq(1)
											.removeClass('r_right');

								} else if ($that.children().eq(0).scrollLeft() <= 0) {

									$that.children().eq(1).children('a').eq(0)
											.removeClass('r_left');

								}

								$that.children().eq(1).children(
										'span.r_current').removeClass(
										'r_current');

								switch ($that.children().eq(0).scrollLeft()) {

								case 0:
									$that.children().eq(1).children('span').eq(
											0).addClass('r_current');
									break;

								case ($that.children().eq(0).width()):
									$that.children().eq(1).children('span').eq(
											1).addClass('r_current');
									break;

								case ($that.children().eq(0).width() * 2):
									$that.children().eq(1).children('span').eq(
											2).addClass('r_current');
									break;

								case ($that.children().eq(0).width() * 3):
									$that.children().eq(1).children('span').eq(
											3).addClass('r_current');
									break;

								}

								clearInterval(k);

							}

						});

	}

})(jQuery);