[Javascript] Navigation Control - No back button?

[Peter Brunone]

    How about submitting the form with a function that first checks to make
sure a certain value hasn't been set, then sets the value and submits the
form?  If the user were to back up, they would be unable to re-submit the
form without reloading (and effectively resetting) the form.  Alternatively
you could have a function that resets the form when the page loads, with
document.formName.reset().

----- Original Message -----
From: "Karau, Joe" <Joe.Karau at Kingland.com>
To: <javascript at LaTech.edu>
Sent: Wednesday, June 20, 2001 3:46 PM
Subject: RE: [Javascript] Navigation Control - No back button?


> It is impossible to completely eliminate the use of a back button.
However,
> there is a mechanism that we have used to "train" our users not to use the
> back button.
>
> We randomly generate a value, and place it in a cookie as we enter a page,
> and pass it as a parameter to all pages that a user can access from the
> page.  Then, on every page we ensure that the parameter is equal to the
> current value of the cookie.  If they get out of sync we redirect the user
> to a totally different "out of sync" page.  We have used this to
effectively
> stop the user from using the back button to mess up our flow.
>
> I'm sure there are better solutions out there, we just haven't been able
to
> think of one yet.  So, I hope this helps you out.
> (and if you come across anything better, please let me know)
>
> Joseph Karau
> Kingland Systems
> joe.karau at kingland.com
> 507-536-3629
> AIM: jkara3629
>
>
> -----Original Message-----
> From: Z. Franco [mailto:zeno at citrus.ucr.edu]
> Sent: Wednesday, June 20, 2001 1:01 PM
> To: javascript at LaTech.edu
> Subject: [Javascript] Navigation Control - No back button?
>
>
> Hi all,
>
> I need to absolutely prevent a user from returning to the previous page (a
> form which inputs to a db) -- the simplest thing I can think of is
removing
> the back button from the browser window.  Is there a better way?
>
> If taking the back button out of the browser window is the approach, could
> you give me an idea what the code would look like?  Also, is there a good
> reference (either book or web) on manipulating browser navigation controls
> using jscript?
>
>
> Thanks a bunch!!
>
> Zeno
>
>
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