$.fn.adfocus = function (options) {
    var opts={
        drection: "",
        //控制方向，分为向上滚，向左滚 ,和渐变效果，填left为左滚动，填up向上滚动，filter为渐变效果，当pull为true的时候，pull_right为右，pull_left为左，pull_top为上，pull_bottom为下。
        numbox: "",
        //轮换数字的层的class名或者ID名 要加" . "或者" # "
        imgbox: "",
        //轮换图的层，放入图片的层，填class名或者id名 要加" . "或者" # "
        text:"",
        //文字层
        speed: "",
        //速度控制
        addClass: "", 
        //轮换数字层里的li标签class样式替换,切忌此处不要加上 " . ",直接填class名
        imgboxWidth:"",
        //宽度
        imgboxHeight:"",
        //高度
        imgLen:"",
        //图片数量
        pull:"",
        //拉动效果开启变量
        usevent:""
    }
    $.extend(opts, options);
    return this.each(function () {

        var adTimer = null;
        var _this = $(this);
        var index = 0; 
        var oNumList =_this.find(opts.numbox).children();
        var txList =_this.find(opts.text).children();
        var len = opts.imgLen;
        var imgListBox = _this.find(opts.imgbox);
        var imglistWidth =  opts.imgboxWidth;
        var imglistHeight = opts.imgboxHeight;
        var imglistBoxChid=imgListBox.children().not("script");
        timer();
        if(opts.pull=="true"){
            imglistBoxChid.not("script").css({
                "position":"absolute",
                "z-index":1
            }).first().css({
                "z-index":2
            })

        }
        oNumList.bind(opts.usevent,function(){
            index = oNumList.index(this);
            action(index);
        }).eq(0).trigger("mouseleave");

        _this.hover(function () {
            clearInterval(adTimer);
        }, function () {
            timer();
           
        })
        //以下是控制滑动的方法
        function timer(){
            adTimer = setInterval(function () {
                action(index)
                index++;
                if (index == len) {
                    index = 0;
                }
            }, opts.speed)
        }
        function action(index) {
            //alert(1);
            if (opts.drection == "left") {         //像左移动
                imgListBox.width(imglistWidth*len);
                imglistBoxChid.css({
                    float: "left"
                });
                imgListBox.stop().animate({
                    left: -imglistWidth * index
                }, 1000);
            } else if(opts.drection == "up") {             //像上移动  
                // alert(1);
                imgListBox.stop().animate({
                    top: -imglistHeight * index
                }, 1000);
            }else if(opts.drection == "filter"){   //渐变效果 
                _this.css({
                    "position":"relative"
                })
                imglistBoxChid.eq(index).css({
                    "position":"absolute",
                    "left":"0px",
                    "top":"0px"
                }).stop()
                .animate({
                    opacity:1
                },500)
                .css({
                    "z-index": "1"
                })
                .siblings().stop().animate({
                    opacity:0
                },500)
                .css({
                    "z-index": "0"
                });
            }else if(opts.pull=="true"){
                var pull_drection = {}
                var pull_drection2 = {}
                if(opts.drection == "pull_right"){
                    key="left";
                    pull_drection[key]="0";
                    pull_drection2[key]=-opts.imgboxWidth;
                    pull(pull_drection,pull_drection2);
                }
                else if(opts.drection == "pull_left"){
                    key="left";
                    pull_drection[key]="0";
                    pull_drection2[key]= opts.imgboxWidth;
                    pull(pull_drection,pull_drection2);
                }
                else if(opts.drection == "pull_top"){
                    key="top";
                    pull_drection[key]="0";
                    pull_drection2[key]=-opts.imgboxHeight;
                    pull(pull_drection,pull_drection2);
                }
                else if(opts.drection == "pull_bottom"){
                    key="top";
                    pull_drection[key]="0";
                    pull_drection2[key]=opts.imgboxHeight;
                    pull(pull_drection,pull_drection2);
                }
				
				
            }

            txList.eq(index).stop().animate({
                "top":0
            },500).siblings().stop().animate({
                "top":-30
            },0);//文字
            oNumList.removeClass(opts.addClass).eq(index).addClass(opts.addClass);
            function pull(pull_drection,pull_drection2){
                imglistBoxChid.not("script").eq(index)
                .css({
                    "z-index": 3
                })
                .siblings().css({
                    "z-index": 1
                });	
                imgListBox.children().not("script").eq(index).stop()
                .animate( pull_drection,500)
                .siblings().stop().animate(pull_drection2,500).css({
                    "z-index": 1
                })
						
            }//pull()
        }
		
		
		
    });
};