iframe 动态onload事件处理方式

http://www.cnblogs.com/ShepherdIsland/archive/2010/07/17/iframe_onload.html

http://blog.csdn.net/frankwangzy1103/article/details/6852259 给iframe添加onload事件

 iframe载入完成时的事件监听 http://blog.csdn.net/wocaonima123987/article/details/8315423

http://www.planabc.net/2009/09/22/iframe_onload/