Alex McAuley wrote:
> No need to worry about multiple instances ... just check the variable 
> before you initialise it...
> Alex Mcauley
> http://www.thevacancymarket.com

Thanks again david and Alex.
I looked but could not find the code to check to see if the variable 
held an instance or was null.
Might I beg for one line of code to show me how to check the variable ?

bill
>
>     ----- Original Message -----
>     *From:* bill <mailto:will...@techservsys.com>
>     *To:* prototype-scriptaculous@googlegroups.com
>     <mailto:prototype-scriptaculous@googlegroups.com>
>     *Sent:* Tuesday, November 17, 2009 3:18 PM
>     *Subject:* [Proto-Scripty] Re: instanting and reinstanting a
>     function: Ajax.PeriodicalUpdater
>
>     david wrote:
>>     Bill,
>>
>>     just a precision (in Fact I did not understand that you still need to
>>     get every minutes the result):
>>     the stop() method is at 
>> http://api.prototypejs.org/ajax/ajax/periodicalupdater.html#stop-instance_method
>>
>>     normally, you could stop & start the peridical updater at will.
>>
>>     --
>>     david
>>       
>     Thanks david and Alex,
>
>     So what is the best practice:
>     1) create the periodicalupdater when the page loads, stopping it
>     immediately and then start it when the div becomes visible and
>     stop it when the div becomes invisible.
>
>     2) create the periodicalupdater when it becomes visible and stop
>     it when it becomes invisible
>
>     Or is there any difference ?
>     (I worry about multiple instanting the periodicalupdater )
>
>     -- 
>     Bill Drescher
>     william {at} TechServSys {dot} com
>
>
>
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-- 
Bill Drescher
william {at} TechServSys {dot} com

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