How detect "refresh" event with prototype?

How detect "refresh" 开发者_运维技巧event with prototype? A Cross-browser solution?

Thanks, Celso

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There's no way to detect refreshes in particular, but you can catch the browser before the page gets unloaded (which happens when the user refreshes the page - as well as when they 'move' to another page)

In prototype this would look something like this:

Event.observe(window, 'beforeunload', yourFunction);

If you need to tell the difference, you could always bind some code to the links on your page that disables the above binding so that when the user actively clicks something you know it's a link (and not a refresh).