javascript addLoadEvent function description_javascript skills

When adding some special effects to a web page, it is often necessary to add the "onload" event to , that is, to execute an event after the web page is loaded, for example:
At this time we will think of using "window.onload" or "document.body.onload" to replace the onload event in . Indeed, the problem is solved, but when loading multiple onload events Or there will be some problems when controlling the order of adding and cutting. Until I discovered the addLoadEvent() function written by "Paul Koch", all the problems were solved. If you must use "window.onload" or "document.body.onload" to replace the onload event in , it is recommended that you use the former. It is invalid in Firefox browser, which means there is a compatibility problem.

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