scrollContent:摇滚动的块，一个DOM对象，这里是ol
* imgHeight:每一张图片的高度，当然，如果想改成左右滚动，这里传入每一张图片的宽，唯一需要注意的是每一张图片宽高必须相同，图片数量可调整
* timeout:切换速度快慢，默认为1.5ms
* hoverClass:每一个按钮激活时的类名
*/
hoverClass = hoverClass || 'active';
timeout = timeout || 1500;
this.btns = btns;
this.scrollContent = scrollContent;
this.hoverClass = hoverClass;
this.timeout = timeout;
this.imgHeight = imgHeight;
var _this = this;
for(var i=0; i= this.btns.length) {
this.pointer = 0;
}
this.clearHover();
this.btns[this.pointer].className = this.hoverClass;
//this.scrollContent.style.top = parseInt(-this.imgHeight * this.pointer) + 'px';
var startVal = parseInt(this.scrollContent.style.left) || 0;
var alterVal = (parseInt(-startVal - this.imgHeight * this.pointer));
this.animateIterval && this.animateIterval();//修正快速切换时闪动
this.animateIterval=animate(this.scrollContent, {left : startVal},{left : alterVal}, 1000, Tween.Quad.easeOut);
//这里默认设置每张图滚动的总时间是1s
},
next: function() {
this.invoke(this.pointer + 1);
},
last: function(){
if(this.pointer<1){
this.invoke(4);
}else{
this.invoke(this.pointer - 1);
}
},
clearHover: function() {
for(var i=0; i