[sf-perl] OffTopic: Any JavaScript programmers here?

David Scott ds94103 at earthlink.net
Fri Jul 4 14:14:32 PDT 2008

We need to know whether you want to revert as the result of a page 
refresh (using the back button) or without a page refresh using DOM 
manipulation.  The latter is probably easier but requires more 
familiarity with JS.


Vicki Brown wrote:
> I know this is a Perl list but many Perl programmers know more than one
> language.
> I have a JS question and don't know where to find the answer. I want to
> implement an "Undo" for a dynamic change to a page.
> Please respond off list if you can help me.
> The problem
> Basically, I'm sorting a list with JS. It's a bullet list, converted into
> an array for sorting and then back to replace the original bullet list.
> I want to save the original list object or array or whatever is most
> convenient before the first sort so I can put up a "put it back" button or
> link. I prefer not to get involved with Cookies.
> Workaround: I know I can just reload the page but that changes position
> and  also takes more time.
> Does anyone know of a convenient way to stash a copy of the array, or the
> list object itself, grabbed originally with
>       var theList = document.getElementById(ListHandle);
>  into a variable that will still be there when I come back the next call
> to the JS?

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