/*
 * slides, a slideshow plugin for jquery
 * intructions: http://slidesjs.com
 * by: nathan searles, http://nathansearles.com
 * version: 1.1.6
 * updated: march 23th, 2011
 *
 * licensed under the apache license, version 2.0 (the "license");
 * you may not use this file except in compliance with the license.
 * you may obtain a copy of the license at
 *
 * http://www.apache.org/licenses/license-2.0
 *
 * unless required by applicable law or agreed to in writing, software
 * distributed under the license is distributed on an "as is" basis,
 * without warranties or conditions of any kind, either express or implied.
 * see the license for the specific language governing permissions and
 * limitations under the license.
 */

(function($) {
	$.fn.slides = function(g) {
		g = $.extend({}, $.fn.slides.option, g);
		return this.each(function() {
			$('.' + g.container, $(this)).children().wrapall('<div class="slides_control"/>');
			var d = $(this),
				control = $('.slides_control', d),
				total = control.children().size(),
				width = control.children().outerwidth(),
				height = control.children().outerheight(),
				start = g.start - 1,
				effect = g.effect.indexof(',') < 0 ? g.effect : g.effect.replace(' ', '').split(',')[0],
				paginationeffect = g.effect.indexof(',') < 0 ? effect : g.effect.replace(' ', '').split(',')[1],
				next = 0,
				prev = 0,
				number = 0,
				current = 0,
				loaded, active, clicked, position, direction, imageparent, pausetimeout, playinterval;

			function animate(a, b, c) {
				if (!active && loaded) {
					active = true;
					g.animationstart(current + 1);
					switch (a) {
					case 'next':
						prev = current;
						next = current + 1;
						next = total === next ? 0 : next;
						position = width * 2;
						a = -width * 2;
						current = next;
						break;
					case 'prev':
						prev = current;
						next = current - 1;
						next = next === -1 ? total - 1 : next;
						position = 0;
						a = 0;
						current = next;
						break;
					case 'pagination':
						next = parseint(c, 10);
						prev = $('.' + g.paginationclass + ' li.current a', d).attr('href').match('[^#/]+$');
						if (next > prev) {
							position = width * 2;
							a = -width * 2
						} else {
							position = 0;
							a = 0
						}
						current = next;
						break
					}
					if (b === 'fade') {
						if (g.crossfade) {
							control.children(':eq(' + next + ')', d).css({
								zindex: 10
							}).fadein(g.fadespeed, g.fadeeasing, function() {
								if (g.autoheight) {
									control.animate({
										height: control.children(':eq(' + next + ')', d).outerheight()
									}, g.autoheightspeed, function() {
										control.children(':eq(' + prev + ')', d).css({
											display: 'none',
											zindex: 0
										});
										control.children(':eq(' + next + ')', d).css({
											zindex: 0
										});
										g.animationcomplete(next + 1);
										active = false
									})
								} else {
									control.children(':eq(' + prev + ')', d).css({
										display: 'none',
										zindex: 0
									});
									control.children(':eq(' + next + ')', d).css({
										zindex: 0
									});
									g.animationcomplete(next + 1);
									active = false
								}
							})
						} else {
							control.children(':eq(' + prev + ')', d).fadeout(g.fadespeed, g.fadeeasing, function() {
								if (g.autoheight) {
									control.animate({
										height: control.children(':eq(' + next + ')', d).outerheight()
									}, g.autoheightspeed, function() {
										control.children(':eq(' + next + ')', d).fadein(g.fadespeed, g.fadeeasing)
									})
								} else {
									control.children(':eq(' + next + ')', d).fadein(g.fadespeed, g.fadeeasing, function() {
										if ($.browser.msie) {
											$(this).get(0).style.removeattribute('filter')
										}
									})
								}
								g.animationcomplete(next + 1);
								active = false
							})
						}
					} else {
						control.children(':eq(' + next + ')').css({
							left: position,
							display: 'block'
						});
						if (g.autoheight) {
							control.animate({
								left: a,
								height: control.children(':eq(' + next + ')').outerheight()
							}, g.slidespeed, g.slideeasing, function() {
								control.css({
									left: -width
								});
								control.children(':eq(' + next + ')').css({
									left: width,
									zindex: 5
								});
								control.children(':eq(' + prev + ')').css({
									left: width,
									display: 'none',
									zindex: 0
								});
								g.animationcomplete(next + 1);
								active = false
							})
						} else {
							control.animate({
								left: a
							}, g.slidespeed, g.slideeasing, function() {
								control.css({
									left: -width
								});
								control.children(':eq(' + next + ')').css({
									left: width,
									zindex: 5
								});
								control.children(':eq(' + prev + ')').css({
									left: width,
									display: 'none',
									zindex: 0
								});
								g.animationcomplete(next + 1);
								active = false
							})
						}
					}
					if (g.pagination) {
						$('.' + g.paginationclass + ' li.current', d).removeclass('current');
						$('.' + g.paginationclass + ' li:eq(' + next + ')', d).addclass('current')
					}
				}
			}
			function stop() {
				clearinterval(d.data('interval'))
			}
			function pause() {
				if (g.pause) {
					cleartimeout(d.data('pause'));
					clearinterval(d.data('interval'));
					pausetimeout = settimeout(function() {
						cleartimeout(d.data('pause'));
						playinterval = setinterval(function() {
							animate("next", effect)
						}, g.play);
						d.data('interval', playinterval)
					}, g.pause);
					d.data('pause', pausetimeout)
				} else {
					stop()
				}
			}
			if (total < 2) {
				return
			}
			if (start < 0) {
				start = 0
			}
			if (start > total) {
				start = total - 1
			}
			if (g.start) {
				current = start
			}
			if (g.randomize) {
				control.randomize()
			}
			$('.' + g.container, d).css({
				overflow: 'hidden',
				position: 'relative'
			});
			control.children().css({
				position: 'absolute',
				top: 0,
				left: control.children().outerwidth(),
				zindex: 0,
				display: 'none'
			});
			control.css({
				position: 'relative',
				width: (width * 3),
				height: height,
				left: -width
			});
			$('.' + g.container, d).css({
				display: 'block'
			});
			if (g.autoheight) {
				control.children().css({
					height: 'auto'
				});
				control.animate({
					height: control.children(':eq(' + start + ')').outerheight()
				}, g.autoheightspeed)
			}
			if (g.preload && control.find('img').length) {
				$('.' + g.container, d).css({
					background: 'url(' + g.preloadimage + ') no-repeat 50% 50%'
				});
				var f = control.find('img:eq(' + start + ')').attr('src') + '?' + (new date()).gettime();
				if ($('img', d).parent().attr('class') != 'slides_control') {
					imageparent = control.children(':eq(0)')[0].tagname.tolowercase()
				} else {
					imageparent = control.find('img:eq(' + start + ')')
				}
				control.find('img:eq(' + start + ')').attr('src', f).load(function() {
					control.find(imageparent + ':eq(' + start + ')').fadein(g.fadespeed, g.fadeeasing, function() {
						$(this).css({
							zindex: 5
						});
						$('.' + g.container, d).css({
							background: ''
						});
						loaded = true;
						g.slidesloaded()
					})
				})
			} else {
				control.children(':eq(' + start + ')').fadein(g.fadespeed, g.fadeeasing, function() {
					loaded = true;
					g.slidesloaded()
				})
			}
			if (g.bigtarget) {
				control.children().css({
					cursor: 'pointer'
				});
				control.children().click(function() {
					animate('next', effect);
					return false
				})
			}
			if (g.hoverpause && g.play) {
				control.bind('mouseover', function() {
					stop()
				});
				control.bind('mouseleave', function() {
					pause()
				})
			}
			if (g.generatenextprev) {
				$('.' + g.container, d).after('<a href="#" class="' + g.prev + '">prev</a>');
				$('.' + g.prev, d).after('<a href="#" class="' + g.next + '">next</a>')
			}
			$('.' + g.next, d).click(function(e) {
				e.preventdefault();
				if (g.play) {
					pause()
				}
				animate('next', effect)
			});
			$('.' + g.prev, d).click(function(e) {
				e.preventdefault();
				if (g.play) {
					pause()
				}
				animate('prev', effect)
			});
			if (g.generatepagination) {
				d.append('<ul class=' + g.paginationclass + '></ul>');
				control.children().each(function() {
					$('.' + g.paginationclass, d).append('<li><a href="#' + number + '">' + '</a></li>');
					number++
				})
			} else {
				$('.' + g.paginationclass + ' li a', d).each(function() {
					$(this).attr('href', '#' + number);
					number++
				})
			}
			$('.' + g.paginationclass + ' li:eq(' + start + ')', d).addclass('current');
			$('.' + g.paginationclass + ' li a', d).click(function() {
				if (g.play) {
					pause()
				}
				clicked = $(this).attr('href').match('[^#/]+$');
				if (current != clicked) {
					animate('pagination', paginationeffect, clicked)
				}
				return false
			});
			$('a.link', d).click(function() {
				if (g.play) {
					pause()
				}
				clicked = $(this).attr('href').match('[^#/]+$') - 1;
				if (current != clicked) {
					animate('pagination', paginationeffect, clicked)
				}
				return false
			});
			if (g.play) {
				playinterval = setinterval(function() {
					animate('next', effect)
				}, g.play);
				d.data('interval', playinterval)
			}
		})
	};
	$.fn.slides.option = {
		preload: false,
		preloadimage: '/img/loading.gif',
		container: 'slides_container',
		generatenextprev: false,
		next: 'next',
		prev: 'prev',
		pagination: true,
		generatepagination: true,
		paginationclass: 'pagination',
		fadespeed: 350,
		fadeeasing: '',
		slidespeed: 350,
		slideeasing: '',
		start: 1,
		effect: 'slide',
		crossfade: false,
		randomize: false,
		play: 0,
		pause: 0,
		hoverpause: false,
		autoheight: false,
		autoheightspeed: 350,
		bigtarget: false,
		animationstart: function() {},
		animationcomplete: function() {},
		slidesloaded: function() {}
	};
	$.fn.randomize = function(c) {
		function randomizeorder() {
			return (math.round(math.random()) - 0.5)
		}
		return ($(this).each(function() {
			var $this = $(this);
			var $children = $this.children();
			var a = $children.length;
			if (a > 1) {
				$children.hide();
				var b = [];
				for (i = 0; i < a; i++) {
					b[b.length] = i
				}
				b = b.sort(randomizeorder);
				$.each(b, function(j, k) {
					var $child = $children.eq(k);
					var $clone = $child.clone(true);
					$clone.show().appendto($this);
					if (c !== undefined) {
						c($child, $clone)
					}
					$child.remove()
				})
			}
		}))
	}
})(jquery);