This is the basics of what I use now...
function check_form_data_for_unload(event_obj)
{
var form_data_message = "You have unsaved data.";
if (window.form_changed) {
if (event_obj)
event_obj.returnValue = form_data_message;
else
return form_data_message;
}
}
window.form_changed = false;
window.onbeforeunload = check_form_data_for_unload;
If I change a form value, I simply set form_changed to true. I do a
bit more than what I show here, but this should be good enough to get
you started.
On 11/12/07, ditman <[EMAIL PROTECTED]> wrote:
>
> First things first: Hi all! I've been sucked into prototype and
> script.aculo.us develpment thanks (because of?) the Symfony PHP
> framework...
>
> I'd like to implement a feature on some admin pages, but I can't seem
> to find the right search term to google it; I want to ask the user to
> confirm exit of a page, if she has changed anything on the forms
> displayed on it.
>
> I have some knowledge in other JS frameworks (did some things in
> Mootools) but for this thing I don't know where to start.
>
> Any advice would be greatly appreciated :)
>
> Thanks!!
>
>
> >
>
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