/*
 * jquery nivo slider v2.5.1
 * http://nivo.dev7studios.com
 *
 * copyright 2011, gilbert pellegrom
 * free to use and abuse under the mit license.
 * http://www.opensource.org/licenses/mit-license.php
 * 
 * march 2010
 */
$(window).load(function() {
	$('#slider').nivoslider();
});

(function($) {
	var nivoslider = function(element, options) {
		var settings = $.extend({}, $.fn.nivoslider.defaults, options);
		var vars = {
			currentslide: 0,
			currentimage: '',
			totalslides: 0,
			randanim: '',
			running: false,
			paused: false,
			stop: false
		};
		var slider = $(element);
		slider.data('nivo:vars', vars);
		slider.css('position', 'relative');
		slider.addclass('nivoslider');
		var kids = slider.children();
		kids.each(function() {
			var child = $(this);
			var link = '';
			if (!child.is('img')) {
				if (child.is('a')) {
					child.addclass('nivo-imagelink');
					link = child;
				}
				child = child.find('img:first');
			}
			var childwidth = child.width();
			if (childwidth == 0) childwidth = child.attr('width');
			var childheight = child.height();
			if (childheight == 0) childheight = child.attr('height');
			if (childwidth > slider.width()) {
				slider.width(childwidth);
			}
			if (childheight > slider.height()) {
				slider.height(childheight);
			}
			if (link != '') {
				link.css('display', 'none');
			}
			child.css('display', 'none');
			vars.totalslides++;
		});
		if (settings.startslide > 0) {
			if (settings.startslide >= vars.totalslides) settings.startslide = vars.totalslides - 1;
			vars.currentslide = settings.startslide;
		}
		if ($(kids[vars.currentslide]).is('img')) {
			vars.currentimage = $(kids[vars.currentslide]);
		} else {
			vars.currentimage = $(kids[vars.currentslide]).find('img:first');
		}
		if ($(kids[vars.currentslide]).is('a')) {
			$(kids[vars.currentslide]).css('display', 'block');
		}
		slider.css('background', 'url("' + vars.currentimage.attr('src') + '") no-repeat');
		slider.append($('<div class="nivo-caption"><p></p></div>').css({
			display: 'none',
			opacity: settings.captionopacity
		}));
		var processcaption = function(settings) {
			var nivocaption = $('.nivo-caption', slider);
			if (vars.currentimage.attr('title') != '') {
				var title = vars.currentimage.attr('title');
				if (title.substr(0, 1) == '#') title = $(title).html();
				if (nivocaption.css('display') == 'block') {
					nivocaption.find('p').fadeout(settings.animspeed, function() {
						$(this).html(title);
						cufon.replace('.nivo-caption p p',{ fontfamily: '宋体' });
						$(this).fadein(settings.animspeed);
					});
				} else {
					nivocaption.find('p').html(title);
				}
				cufon.replace('.nivo-caption p p',{ fontfamily: '宋体' });
				nivocaption.fadein(settings.animspeed);
			} else {
				nivocaption.fadeout(settings.animspeed);
			}
		
		}
		processcaption(settings);
		var timer = 0;
		if (!settings.manualadvance && kids.length > 1) {
			timer = setinterval(function() {
				nivorun(slider, kids, settings, false);
			}, settings.pausetime);
		}
		if (settings.directionnav) {
			slider.append('<div class="nivo-directionnav"><a class="nivo-prevnav">' + settings.prevtext + '</a><a class="nivo-nextnav">' + settings.nexttext + '</a></div>');
			if (settings.directionnavhide) {
				$('.nivo-directionnav', slider).hide();
				slider.hover(function() {
					$('.nivo-directionnav', slider).show();
				}, function() {
					$('.nivo-directionnav', slider).hide();
				});
			}
			$('a.nivo-prevnav', slider).live('click', function() {
				if (vars.running) return false;
				clearinterval(timer);
				timer = '';
				vars.currentslide -= 2;
				nivorun(slider, kids, settings, 'prev');
			});
			$('a.nivo-nextnav', slider).live('click', function() {
				if (vars.running) return false;
				clearinterval(timer);
				timer = '';
				nivorun(slider, kids, settings, 'next');
			});
		}
		if (settings.controlnav) {
			var nivocontrol = $('<div class="nivo-controlnav"></div>');
			slider.append(nivocontrol);
			for (var i = 0; i < kids.length; i++) {
				if (settings.controlnavthumbs) {
					var child = kids.eq(i);
					if (!child.is('img')) {
						child = child.find('img:first');
					}
					if (settings.controlnavthumbsfromrel) {
						nivocontrol.append('<a class="nivo-control" rel="' + i + '"><img src="' + child.attr('rel') + '" alt="" /></a>');
					} else {
						nivocontrol.append('<a class="nivo-control" rel="' + i + '"><img src="' + child.attr('src').replace(settings.controlnavthumbssearch, settings.controlnavthumbsreplace) + '" alt="" /></a>');
					}
				} else {
					nivocontrol.append('<a class="nivo-control" rel="' + i + '">' + (i + 1) + '</a>');
				}
			}
			$('.nivo-controlnav a:eq(' + vars.currentslide + ')', slider).addclass('active');
			$('.nivo-controlnav a', slider).live('click', function() {
				if (vars.running) return false;
				if ($(this).hasclass('active')) return false;
				clearinterval(timer);
				timer = '';
				slider.css('background', 'url("' + vars.currentimage.attr('src') + '") no-repeat');
				vars.currentslide = $(this).attr('rel') - 1;
				nivorun(slider, kids, settings, 'control');
			});
		}
		if (settings.keyboardnav) {
			$(window).keypress(function(event) {
				if (event.keycode == '37') {
					if (vars.running) return false;
					clearinterval(timer);
					timer = '';
					vars.currentslide -= 2;
					nivorun(slider, kids, settings, 'prev');
				}
				if (event.keycode == '39') {
					if (vars.running) return false;
					clearinterval(timer);
					timer = '';
					nivorun(slider, kids, settings, 'next');
				}
			});
		}
		if (settings.pauseonhover) {
			slider.hover(function() {
				vars.paused = true;
				clearinterval(timer);
				timer = '';
			}, function() {
				vars.paused = false;
				if (timer == '' && !settings.manualadvance) {
					timer = setinterval(function() {
						nivorun(slider, kids, settings, false);
					}, settings.pausetime);
				}
			});
		}
		slider.bind('nivo:animfinished', function() {
			vars.running = false;
			$(kids).each(function() {
				if ($(this).is('a')) {
					$(this).css('display', 'none');
				}
			});
			if ($(kids[vars.currentslide]).is('a')) {
				$(kids[vars.currentslide]).css('display', 'block');
			}
			if (timer == '' && !vars.paused && !settings.manualadvance) {
				timer = setinterval(function() {
					nivorun(slider, kids, settings, false);
				}, settings.pausetime);
			}
			settings.afterchange.call(this);
		});
		var createslices = function(slider, settings, vars) {
			for (var i = 0; i < settings.slices; i++) {
				var slicewidth = math.round(slider.width() / settings.slices);
				if (i == settings.slices - 1) {
					slider.append($('<div class="nivo-slice"></div>').css({
						left: (slicewidth * i) + 'px',
						width: (slider.width() - (slicewidth * i)) + 'px',
						height: '0px',
						opacity: '0',
						background: 'url("' + vars.currentimage.attr('src') + '") no-repeat -' + ((slicewidth + (i * slicewidth)) - slicewidth) + 'px 0%'
					}));
				} else {
					slider.append($('<div class="nivo-slice"></div>').css({
						left: (slicewidth * i) + 'px',
						width: slicewidth + 'px',
						height: '0px',
						opacity: '0',
						background: 'url("' + vars.currentimage.attr('src') + '") no-repeat -' + ((slicewidth + (i * slicewidth)) - slicewidth) + 'px 0%'
					}));
				}
			}
		}
		var createboxes = function(slider, settings, vars) {
			var boxwidth = math.round(slider.width() / settings.boxcols);
			var boxheight = math.round(slider.height() / settings.boxrows);
			for (var rows = 0; rows < settings.boxrows; rows++) {
				for (var cols = 0; cols < settings.boxcols; cols++) {
					if (cols == settings.boxcols - 1) {
						slider.append($('<div class="nivo-box"></div>').css({
							opacity: 0,
							left: (boxwidth * cols) + 'px',
							top: (boxheight * rows) + 'px',
							width: (slider.width() - (boxwidth * cols)) + 'px',
							height: boxheight + 'px',
							background: 'url("' + vars.currentimage.attr('src') + '") no-repeat -' + ((boxwidth + (cols * boxwidth)) - boxwidth) + 'px -' + ((boxheight + (rows * boxheight)) - boxheight) + 'px'
						}));
					} else {
						slider.append($('<div class="nivo-box"></div>').css({
							opacity: 0,
							left: (boxwidth * cols) + 'px',
							top: (boxheight * rows) + 'px',
							width: boxwidth + 'px',
							height: boxheight + 'px',
							background: 'url("' + vars.currentimage.attr('src') + '") no-repeat -' + ((boxwidth + (cols * boxwidth)) - boxwidth) + 'px -' + ((boxheight + (rows * boxheight)) - boxheight) + 'px'
						}));
					}
				}
			}
		}
		var nivorun = function(slider, kids, settings, nudge) {
			var vars = slider.data('nivo:vars');
			if (vars && (vars.currentslide == vars.totalslides - 1)) {
				settings.lastslide.call(this);
			}
			if ((!vars || vars.stop) && !nudge) return false;
			settings.beforechange.call(this);
			if (!nudge) {
				slider.css('background', 'url("' + vars.currentimage.attr('src') + '") no-repeat');
			} else {
				if (nudge == 'prev') {
					slider.css('background', 'url("' + vars.currentimage.attr('src') + '") no-repeat');
				}
				if (nudge == 'next') {
					slider.css('background', 'url("' + vars.currentimage.attr('src') + '") no-repeat');
				}
			}
			vars.currentslide++;
			if (vars.currentslide == vars.totalslides) {
				vars.currentslide = 0;
				settings.slideshowend.call(this);
			}
			if (vars.currentslide < 0) vars.currentslide = (vars.totalslides - 1);
			if ($(kids[vars.currentslide]).is('img')) {
				vars.currentimage = $(kids[vars.currentslide]);
			} else {
				vars.currentimage = $(kids[vars.currentslide]).find('img:first');
			}
			if (settings.controlnav) {
				$('.nivo-controlnav a', slider).removeclass('active');
				$('.nivo-controlnav a:eq(' + vars.currentslide + ')', slider).addclass('active');
			}
			processcaption(settings);
			$('.nivo-slice', slider).remove();
			$('.nivo-box', slider).remove();
			if (settings.effect == 'random') {
				var anims = new array('slicedownright', 'slicedownleft', 'sliceupright', 'sliceupleft', 'sliceupdown', 'sliceupdownleft', 'fold', 'fade', 'boxrandom', 'boxrain', 'boxrainreverse', 'boxraingrow', 'boxraingrowreverse');
				vars.randanim = anims[math.floor(math.random() * (anims.length + 1))];
				if (vars.randanim == undefined) vars.randanim = 'fade';
			}
			if (settings.effect.indexof(',') != -1) {
				var anims = settings.effect.split(',');
				vars.randanim = anims[math.floor(math.random() * (anims.length))];
				if (vars.randanim == undefined) vars.randanim = 'fade';
			}
			vars.running = true;
			if (settings.effect == 'slicedown' || settings.effect == 'slicedownright' || vars.randanim == 'slicedownright' || settings.effect == 'slicedownleft' || vars.randanim == 'slicedownleft') {
				createslices(slider, settings, vars);
				var timebuff = 0;
				var i = 0;
				var slices = $('.nivo-slice', slider);
				if (settings.effect == 'slicedownleft' || vars.randanim == 'slicedownleft') slices = $('.nivo-slice', slider)._reverse();
				slices.each(function() {
					var slice = $(this);
					slice.css({
						'top': '0px'
					});
					if (i == settings.slices - 1) {
						settimeout(function() {
							slice.animate({
								height: '100%',
								opacity: '1.0'
							}, settings.animspeed, '', function() {
								slider.trigger('nivo:animfinished');
							});
						}, (100 + timebuff));
					} else {
						settimeout(function() {
							slice.animate({
								height: '100%',
								opacity: '1.0'
							}, settings.animspeed);
						}, (100 + timebuff));
					}
					timebuff += 50;
					i++;
				});
			}
			else if (settings.effect == 'sliceup' || settings.effect == 'sliceupright' || vars.randanim == 'sliceupright' || settings.effect == 'sliceupleft' || vars.randanim == 'sliceupleft') {
				createslices(slider, settings, vars);
				var timebuff = 0;
				var i = 0;
				var slices = $('.nivo-slice', slider);
				if (settings.effect == 'sliceupleft' || vars.randanim == 'sliceupleft') slices = $('.nivo-slice', slider)._reverse();
				slices.each(function() {
					var slice = $(this);
					slice.css({
						'bottom': '0px'
					});
					if (i == settings.slices - 1) {
						settimeout(function() {
							slice.animate({
								height: '100%',
								opacity: '1.0'
							}, settings.animspeed, '', function() {
								slider.trigger('nivo:animfinished');
							});
						}, (100 + timebuff));
					} else {
						settimeout(function() {
							slice.animate({
								height: '100%',
								opacity: '1.0'
							}, settings.animspeed);
						}, (100 + timebuff));
					}
					timebuff += 50;
					i++;
				});
			}
			else if (settings.effect == 'sliceupdown' || settings.effect == 'sliceupdownright' || vars.randanim == 'sliceupdown' || settings.effect == 'sliceupdownleft' || vars.randanim == 'sliceupdownleft') {
				createslices(slider, settings, vars);
				var timebuff = 0;
				var i = 0;
				var v = 0;
				var slices = $('.nivo-slice', slider);
				if (settings.effect == 'sliceupdownleft' || vars.randanim == 'sliceupdownleft') slices = $('.nivo-slice', slider)._reverse();
				slices.each(function() {
					var slice = $(this);
					if (i == 0) {
						slice.css('top', '0px');
						i++;
					} else {
						slice.css('bottom', '0px');
						i = 0;
					}
					if (v == settings.slices - 1) {
						settimeout(function() {
							slice.animate({
								height: '100%',
								opacity: '1.0'
							}, settings.animspeed, '', function() {
								slider.trigger('nivo:animfinished');
							});
						}, (100 + timebuff));
					} else {
						settimeout(function() {
							slice.animate({
								height: '100%',
								opacity: '1.0'
							}, settings.animspeed);
						}, (100 + timebuff));
					}
					timebuff += 50;
					v++;
				});
			}
			else if (settings.effect == 'fold' || vars.randanim == 'fold') {
				createslices(slider, settings, vars);
				var timebuff = 0;
				var i = 0;
				$('.nivo-slice', slider).each(function() {
					var slice = $(this);
					var origwidth = slice.width();
					slice.css({
						top: '0px',
						height: '100%',
						width: '0px'
					});
					if (i == settings.slices - 1) {
						settimeout(function() {
							slice.animate({
								width: origwidth,
								opacity: '1.0'
							}, settings.animspeed, '', function() {
								slider.trigger('nivo:animfinished');
							});
						}, (100 + timebuff));
					} else {
						settimeout(function() {
							slice.animate({
								width: origwidth,
								opacity: '1.0'
							}, settings.animspeed);
						}, (100 + timebuff));
					}
					timebuff += 50;
					i++;
				});
			}
			else if (settings.effect == 'fade' || vars.randanim == 'fade') {
				createslices(slider, settings, vars);
				var firstslice = $('.nivo-slice:first', slider);
				firstslice.css({
					'height': '100%',
					'width': slider.width() + 'px'
				});
				firstslice.animate({
					opacity: '1.0'
				}, (settings.animspeed * 2), '', function() {
					slider.trigger('nivo:animfinished');
				});
			}
			else if (settings.effect == 'slideinright' || vars.randanim == 'slideinright') {
				createslices(slider, settings, vars);
				var firstslice = $('.nivo-slice:first', slider);
				firstslice.css({
					'height': '100%',
					'width': '0px',
					'opacity': '1'
				});
				firstslice.animate({
					width: slider.width() + 'px'
				}, (settings.animspeed * 2), '', function() {
					slider.trigger('nivo:animfinished');
				});
			}
			else if (settings.effect == 'slideinleft' || vars.randanim == 'slideinleft') {
				createslices(slider, settings, vars);
				var firstslice = $('.nivo-slice:first', slider);
				firstslice.css({
					'height': '100%',
					'width': '0px',
					'opacity': '1',
					'left': '',
					'right': '0px'
				});
				firstslice.animate({
					width: slider.width() + 'px'
				}, (settings.animspeed * 2), '', function() {
					firstslice.css({
						'left': '0px',
						'right': ''
					});
					slider.trigger('nivo:animfinished');
				});
			}
			else if (settings.effect == 'boxrandom' || vars.randanim == 'boxrandom') {
				createboxes(slider, settings, vars);
				var totalboxes = settings.boxcols * settings.boxrows;
				var i = 0;
				var timebuff = 0;
				var boxes = shuffle($('.nivo-box', slider));
				boxes.each(function() {
					var box = $(this);
					if (i == totalboxes - 1) {
						settimeout(function() {
							box.animate({
								opacity: '1'
							}, settings.animspeed, '', function() {
								slider.trigger('nivo:animfinished');
							});
						}, (100 + timebuff));
					} else {
						settimeout(function() {
							box.animate({
								opacity: '1'
							}, settings.animspeed);
						}, (100 + timebuff));
					}
					timebuff += 20;
					i++;
				});
			}
			else if (settings.effect == 'boxrain' || vars.randanim == 'boxrain' || settings.effect == 'boxrainreverse' || vars.randanim == 'boxrainreverse' || settings.effect == 'boxraingrow' || vars.randanim == 'boxraingrow' || settings.effect == 'boxraingrowreverse' || vars.randanim == 'boxraingrowreverse') {
				createboxes(slider, settings, vars);
				var totalboxes = settings.boxcols * settings.boxrows;
				var i = 0;
				var timebuff = 0;
				var rowindex = 0;
				var colindex = 0;
				var box2darr = new array();
				box2darr[rowindex] = new array();
				var boxes = $('.nivo-box', slider);
				if (settings.effect == 'boxrainreverse' || vars.randanim == 'boxrainreverse' || settings.effect == 'boxraingrowreverse' || vars.randanim == 'boxraingrowreverse') {
					boxes = $('.nivo-box', slider)._reverse();
				}
				boxes.each(function() {
					box2darr[rowindex][colindex] = $(this);
					colindex++;
					if (colindex == settings.boxcols) {
						rowindex++;
						colindex = 0;
						box2darr[rowindex] = new array();
					}
				});
				for (var cols = 0; cols < (settings.boxcols * 2); cols++) {
					var prevcol = cols;
					for (var rows = 0; rows < settings.boxrows; rows++) {
						if (prevcol >= 0 && prevcol < settings.boxcols) {
							(function(row, col, time, i, totalboxes) {
								var box = $(box2darr[row][col]);
								var w = box.width();
								var h = box.height();
								if (settings.effect == 'boxraingrow' || vars.randanim == 'boxraingrow' || settings.effect == 'boxraingrowreverse' || vars.randanim == 'boxraingrowreverse') {
									box.width(0).height(0);
								}
								if (i == totalboxes - 1) {
									settimeout(function() {
										box.animate({
											opacity: '1',
											width: w,
											height: h
										}, settings.animspeed / 1.3, '', function() {
											slider.trigger('nivo:animfinished');
										});
									}, (100 + time));
								} else {
									settimeout(function() {
										box.animate({
											opacity: '1',
											width: w,
											height: h
										}, settings.animspeed / 1.3);
									}, (100 + time));
								}
							})(rows, prevcol, timebuff, i, totalboxes);
							i++;
						}
						prevcol--;
					}
					timebuff += 100;
				}
			}
		}
		var shuffle = function(arr) {
			for (var j, x, i = arr.length; i; j = parseint(math.random() * i), x = arr[--i], arr[i] = arr[j], arr[j] = x);
			return arr;
		}
		var trace = function(msg) {
			if (this.console && typeof console.log != "undefined") console.log(msg);
		}
		this.stop = function() {
			if (!$(element).data('nivo:vars').stop) {
				$(element).data('nivo:vars').stop = true;
				trace('stop slider');
			}
		}
		this.start = function() {
			if ($(element).data('nivo:vars').stop) {
				$(element).data('nivo:vars').stop = false;
				trace('start slider');
			}
		}
		settings.afterload.call(this);
		return this;
	};
	$.fn.nivoslider = function(options) {
		return this.each(function(key, value) {
			var element = $(this);
			if (element.data('nivoslider')) return element.data('nivoslider');
			var nivoslider = new nivoslider(this, options);
			element.data('nivoslider', nivoslider);
		});
	};
	$.fn.nivoslider.defaults = {
		effect: 'random',
		slices: 15,
		boxcols: 8,
		boxrows: 4,
		animspeed: 500,
		pausetime: 3000,
		startslide: 0,
		directionnav: true,
		directionnavhide: true,
		controlnav: true,
		controlnavthumbs: false,
		controlnavthumbsfromrel: false,
		controlnavthumbssearch: '.jpg',
		controlnavthumbsreplace: '_thumb.jpg',
		keyboardnav: true,
		pauseonhover: true,
		manualadvance: false,
		captionopacity: 1,
		prevtext: 'prev',
		nexttext: 'next',
		beforechange: function() {},
		afterchange: function() {},
		slideshowend: function() {},
		lastslide: function() {},
		afterload: function() {}
	};
	$.fn._reverse = [].reverse;
})(jquery);