(function($){

    $.fn.FocusPic = function(options){

        var defaults = {

            intervalTime:1000,//切换时间

            divElement:".FocusPic",//div元素

            imgElement:".imgList",//图片元素

            numElement:".countNum",//数字索引按钮元素

            titleElement:".titleList",//标题文字元素

            currentClass:"current"//当前数字样式

        }

        var options = $.extend(defaults, options);

        var imgEle = options.divElement+" " + options.imgElement;

        var numEle = options.divElement+" " + options.numElement;

        var titleEle = options.divElement+" " + options.titleElement;

        var count = $(imgEle+">li").length;

        var index=0;

        /* 如果按钮元素不存在则添加按钮元素 */

        if($(numEle).length==0)

        {

            createElement(options.numElement);

        }

        for(var i=0;i<count;i++)

        {

            $(numEle).append("<li>"+(i+1)+"</li>");

        }

        /* 如果标题元素不存在则添加元素 */

        if($(titleEle).length==0)

        {

            createElement(options.titleElement);

        }

        for(var i=0;i<count;i++)

        {

            var a = $($(imgEle+" li")[i]).find("a");

            if(a.length>0)

            {

                var link = "<a target='_blank' href='"+$(a).attr("href")+"' >"+ $(a).attr("title")+"</a>";

                $(titleEle).append("<li>"+link+"</li>");

            }

            else

            {

                $(titleEle).append("<li> </li>");

            }

        }

        /* 开始时显示第一个图片 */

        //$($(imgEle+" li")[index]).css("display","list-item");

        //$($(imgEle+" li")[index]).fadeIn(100);

        $($(imgEle+" li")[index]).show();

        $($(numEle+" li")[index]).addClass(options.currentClass);

        $($(titleEle+" li")[index]).show();

        index++;

        $(numEle+" li").click(function(){

            var ind = $(numEle+" li").index($(this));

            index =ind;

            imgShow(ind);

        });

        var playing = setInterval(autoShow,options.intervalTime);

        $(options.divElement).mouseover(function()

        {

            clearInterval(playing);

        });

        $(options.divElement).mouseout(function()

        {

            playing = setInterval(autoShow,options.intervalTime);

        });

        function createElement(e)

        {

            if( e.substring(0,1)=='.')

                $(options.divElement).append("<ul class='"+  e.replace('.','') +"'></ul");

            else if( e.substring(0,1)=='#')

                $(options.divElement).append("<ul id='"+  e.replace('.','#') +"'></ul");

            else

                $(options.divElement).append("<ul class='"+  e +"'></ul");

        }

        function autoShow()

        {

            imgShow(index);

            index++;

            if(index>=count) index=0;

        }

        /* 显示第ind个图片 */

        function imgShow(ind)

        {

            $(imgEle+" li").fadeOut(1000);

            $($(imgEle+" li")[ind]).fadeIn(1000);

            $(numEle+" li").removeClass(options.currentClass);

            $($(numEle+" li")[ind]).addClass(options.currentClass);

            $(titleEle+" li").hide();

            $($(titleEle+" li")[ind]).show();

        }

    };

})(jQuery);