Lazyload是通过延迟加载来实现按需加载，达到节省资源，加快浏览速度的目的。

网上也有不少类似的效果，这个Lazyload主要特点是：

支持使用window（窗口）或元素作为容器对象；

对静态（位置大小不变）元素做了大量的优化；

支持垂直、水平或同时两个方向的延迟。

兼容：ie6/7/8, firefox 3.5.5, opera 10.10, safari 4.0.4, chrome 3.0-Lazyload is to achieve the load by delaying the load, to achieve the purpose of saving resources and speed up the browsing speed.

Online also has a lot of similar effects, the main feature of this Lazyload is:

Supports the use of window (Windows) or elements as container objects

A large number of static (position size invariant) elements are optimized

Support for vertical, horizontal, or delay in two directions at the same time.

Compatible: Firefox, 3.5.5 opera, ie6/7/8 10.10, 4.0.4 chrome, Safari 3