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jquery/*
* yz silder 背景轮播
* @ccx
* 创建于：2014/10/03
*/
(function($){
$.fn.yzSilder = function(options){
var settings ={
affect: 'scrollx', //效果 有62616964757a686964616fe58685e5aeb931333363386661scrollx|scrolly|fade|none
speed: 1200, //动画速度
space: 6000, //时间间隔
auto: true, //自动滚动
trigger: 'mouseover', //触发事件 注意用mouseover代替hover
conbox: '.conbox', //内容容器id或class
ctag: 'a', //内容标签 默认为
switcher: '.switcher', //切换触发器id或class
stag: 'a', //切换器标签 默认为a
current:'cur', //当前切换器样式名称
rand:false, //是否随机指定默认幻灯图片
prev:'#ban_prev',//切换上一张 id或class
next:'#ban_next',//切换下一张 id或class
sliderLast:0,
mousewheel:false,
sliderFirst:0
};
settings = $.extend({}, settings, options);
var index = 1;
var last_index = 0;
var $prev=$(this).find(settings.prev);
var $next=$(this).find(settings.next);
var $conbox = $(this).find(settings.conbox),$contents = $conbox.find(settings.ctag);
/*创建圆点图标并且居中*/
_create_icon();
//
var $switcher = $(this).find(settings.switcher),$stag = $switcher.find(settings.stag);
if(settings.rand) {index = Math.floor(Math.random()*$contents.length);slide();}
if(settings.affect == 'fade'){
$.each($contents,function(k, v){
(k === 0) ? $(this).css({'position':'absolute','z-index':9}):$(this).css({'position':'absolute','z-index':1,'opacity':0});
});
}
function slide(){
if (index >= $contents.length) {
index = 0;
if(typeof settings.sliderLast=='function'){
settings.sliderLast();
//return
}
}
if(index<0) {
index=$contents.length-1;
if(typeof settings.sliderFirst=='function'){
settings.sliderFirst();
return
}
}
$stag.removeClass(settings.current).eq(index).addClass(settings.current);
switch(settings.affect){
case 'scrollx':
$conbox.width($contents.length*$contents.width());
$conbox.stop().animate({left:-$contents.width()*index},settings.speed);
break;
case 'scrolly':
$contents.css({display:'block'});
$conbox.stop().animate({top:-$contents.height()*index+'px'},settings.speed);
break;
case 'fade':
$contents.eq(last_index).stop().animate({'opacity': 0}, settings.speed/2).css('z-index',1)
.end()
.eq(index).css('z-index',9).stop().animate({'opacity': 1}, settings.speed/2)
break;
case 'none':
$contents.hide().eq(index).show();
break;
}
last_index = index;
index++;
};
if(settings.auto) var Timer = setInterval(slide, settings.space);
$stag.bind(settings.trigger,function(){_pause()
index = $(this).index();
slide();
_continue()
});
if(settings.mousewheel){
$(this).bind('mousewheel', function(event, delta) {
event.preventDefault();
if(delta<0){
slide();
_continue()
}
else{
index =last_index-1;
slide();
_continue()
}
});
}
//异类啊！！
$prev.bind("click",function(){_pause()
index =last_index-1;
slide();
_continue()
});
$next.bind("click",function(){_pause()
index =last_index+1;
slide();
_continue()
});
$conbox.hover(_pause,_continue);
function _pause(){
clearInterval(Timer);
}
function _continue(){
if(settings.auto)Timer = setInterval(slide, settings.space);
}
/*创建圆点图标;根据轮播图片的数量*/
function _create_icon(){
var _html = '';
for(var i=1;i<=$contents.length;i++){
if(i==1) _html+= '
'+ i +'';else _html+= '
'+ i +'';}
$(settings.switcher).html(_html);
}
}
})(jQuery);