http://www.experts-exchange.com/Programming/Languages/Scripting/JavaScript/Q_22863431.html
here is a link which i got during the search . just try this out i
hope this will help you out . as i am not able to open this site im
not sure how much it can help you.

On Fri, Dec 26, 2008 at 11:07 AM, Charan <[email protected]> wrote:
>
> Hi Kiran Raj,
> Thanks for your replies.
> I found one variable of javascript which is using by GWT to store the
> token ($wnd.__gwt_historyToken) ,
> but i didn't which javascript array variable holding this, when we
> know we can clear that array will acheive out goal.
> can i know which way you are tried to solve this issue thru
> javascript , may be that will help to think more in different way to
> solve my issue
>
> Thanks
> -Charan
>
>
> On Dec 26, 9:25 am, "kiran raj" <[email protected]> wrote:
>> as javascript is a client side scripting the main thing which is
>> considered here is the browsers used. so keeping this in mind you can
>> create a code which might even help us to get . i tried to create one
>> but it failed as well.
>>
>> On Wed, Dec 24, 2008 at 8:28 PM, Charan <[email protected]> wrote:
>>
>> > Any help is appreciated hack to javascript variable thru JSNI
>>
>> > -Charan
>>
>> > On Dec 24, 2:24 pm, "kiran raj" <[email protected]> wrote:
>> >> sorry then i think its not possible to do so.
>>
>> >> On Wed, Dec 24, 2008 at 2:44 PM, Charan <[email protected]> wrote:
>>
>> >> > I don't think such method in History class
>>
>> >> > =Charan
>>
>> >> > On Dec 24, 12:59 pm, "kiran raj" <[email protected]> wrote:
>> >> >> did you try history.clear();
>>
>> >> >> On Wed, Dec 24, 2008 at 12:45 PM, Charan <[email protected]> wrote:
>>
>> >> >> > Hi,
>>
>> >> >> > After a long time after giving a message with similar question in
>> >> >> > diffferent way to acheive
>>
>> >> >> > Is there any way to delete tokens which are added to HIstory using
>> >> >> > History.newItem(), now i need to delete some tokens which i don't
>> >> >> > need
>>
>> >> >> > can you give me any suggestion to acheive this, by overding
>> >> >> > javascript , or JSON any suggestion will do
>>
>> >> >> > Thanks & regards
>> >> >> > Charan
>>
>> >> >> > On Oct 30, 5:11 pm, "Ian Bambury" <[email protected]> wrote:
>> >> >> >> OK,
>> >> >> >> Well, that might indicate that you should redesign slightly so that 
>> >> >> >> you only
>> >> >> >> set it once :-) Re-initialising a number of times would suggest 
>> >> >> >> that there
>> >> >> >> is a better design somewhere - not always possible or practicable, 
>> >> >> >> I know if
>> >> >> >> you have an existing system.
>>
>> >> >> >> Or maybe you could save the token somewhere and only write it out 
>> >> >> >> when the
>> >> >> >> page is set up.
>>
>> >> >> >> *But*... if you write *exactly* the same token multiple times one 
>> >> >> >> after the
>> >> >> >> other, you should only get one history entry
>>
>> >> >> >> Ian
>>
>> >> >> >>http://examples.roughian.com
>>
>> >> >> >> 2008/10/30 Charan <[email protected]>
>>
>> >> >> >> > hi Ian,
>> >> >> >> > Thanks for your quick reply.
>> >> >> >> > Actually what i need is i am  storing the History tokens using
>> >> >> >> > newItem(token) ,sometimes i am re intializing some part of code
>> >> >> >> > several times where i am adding same token multiple times.
>> >> >> >> > when i go back to that page it is having four tokens with the same
>> >> >> >> > which i don't want.
>>
>> >> >> >> > On Oct 30, 4:33 pm, "Ian Bambury" <[email protected]> wrote:
>> >> >> >> > > History is a function of the browser.
>> >> >> >> > > If you could clear the history, you could stop people going 
>> >> >> >> > > back to the
>> >> >> >> > page
>> >> >> >> > > they came from.
>>
>> >> >> >> > > Browsers tend to view this as not desirable.
>>
>> >> >> >> > > Ian
>>
>> >> >> >> > >http://examples.roughian.com
>>
>> >> >> >> > > 2008/10/30 Charan <[email protected]>
>>
>> >> >> >> > > > How to clear the tokens in History class , i didn't find any
>> >> >> >> > > > removeToken/tokens methods in History class
>>
>> >> >> >> > > > can i know is there is any way to clear tokens  in history
> >
>

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