将#signal分配给父变量需要什么onload事件处理程序？
问题描述：
获取#signal父变量所需的onload事件处理程序是什么？我尝试了什么都不行！
代码来自JS圣经，第127-8页，我做了一些小改动。
父页面（部分）
What is the onload event handler needed to get # assigned to parent variable? What I tried didn''t work!
Code is from JS bible, page 127-8 with some minor alterations by me.
Parent Page (in part)
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答
使用
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最后，我试过这个：
Lastly, I tried this:
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我一直在努力研究并找到答案，但不理解我读过的内容。并且，没有人有时间阅读这个。所以，将在周五回来查看。
I''ve been trying to research and find an answer, but not understanding what I''ve read yet. And, no one has had the time yet to read this. So, will check back on Friday.