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if (!NeuF) var NeuF = {};
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NeuF.ScrollPage = function (obj, options, callback) {
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var _defaultOptions = { delay: 500, marginBottom: 100 }; //默认配置：延迟时间delay和滚动条距离底部距离marginBottom (marginBottom: 100)
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options = $.extend(_defaultOptions, options);
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this.isScrolling = false; //是否在滚动
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this.oriPos = 0; //原始位置
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this.curPos = 0; //当前位置
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var me = this; //顶层
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var $obj = (typeof obj == "string") ? $("#" + obj) : $(obj);
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//绑定滚动事件
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$obj.scroll(function (ev) {
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me.curPos = $obj.scrollTop();
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if ($(window).height() + $(window).scrollTop() >= $(document.body).height() - options.marginBottom) {
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if (me.isScrolling == true) return;
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me.isScrolling = true;
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setTimeout(function () { me.isScrolling = false; }, options.delay); //重复触发间隔毫秒
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if (typeof callback == "function") callback.call(null, me.curPos - me.oriPos);
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};
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me.oriPos = me.curPos;
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});
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};
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