/*
* jquery.scrollLoading.js
* by zhangxinxu  http://www.zhangxinxu.com
* 2010-11-19 v1.0
*/
(function (a) { a.fn.scrollLoading = function (b) { var c = { attr: "data-url" }; var d = a.extend({}, c, b || {}); d.cache = []; a(this).each(function () { var g = this.nodeName.toLowerCase(), f = a(this).attr(d.attr); if (!f) { return } var h = { obj: a(this), tag: g, url: f }; d.cache.push(h) }); var e = function () { var f = a(window).scrollTop(), g = f + a(window).height(); a.each(d.cache, function (k, l) { var m = l.obj, h = l.tag, j = l.url; if (m) { post = m.position().top; posb = post + m.height(); if ((post > f && post < g) || (posb > f && posb < g)) { if (h === "img") { m.attr("src", j) } else { m.load(j) } l.obj = null } } }); return false }; e(); a(window).bind("scroll", e) } })(jQuery);