okay i am trying to get this correct ..

You want to see if a certain amount of spans in an element have a class name 
of 'complete' and if so do something else

firstly you can easily count the amount with $$

var $complete=$$('.complete').length


then you want to do something if they are more than or equal to 3

if(($complete) && ($complete>=3) {

do_something();
}


is this correct so far ..

Sorry i am having trouble deciphering what you want to achieve

Alex


----- Original Message ----- 
From: "Matt Andrews" <[EMAIL PROTECTED]>
To: "Prototype & script.aculo.us" <prototype-scriptaculous@googlegroups.com>
Sent: Friday, November 07, 2008 3:41 PM
Subject: [Proto-Scripty] Re: testing whether all elements in a div have a 
certain class



Can anyone help? I'm really close to solving this, I just need someone
with a better grasp of Javascript to prod me in the right direction...

On Nov 3, 9:51 am, Matt <[EMAIL PROTECTED]> wrote:
> On Nov 1, 4:38 pm, Jarkko Laine <[EMAIL PROTECTED]> wrote:
>
>
>
> > 1) your alerting with a string "bar" there.
> > 2) $$ returns an array of elements. If you want a single item, why not
> > give the span a unique id and call it with $? If you need to use the
> > double-dollar selector, you need to get the first element of the array
> > to get the actual element: $$('#container_'+boxID+' span')[0]; One
> > option that gives you the span element (with the html syntax you
> > posted before) is this: $('container_' + boxID).down('span').
>
> > > <a href="#" onclick="foo("24");">click here</a>
>
> > > // returns "$$('#container_24 span')";
>
> > You mean the function above alerts that string? Frankly, I don't
> > believe you :-)
>
> > The parameter that $ and $$ take is just a normal string. There's
> > nothing magical about it. So if you can do "string" + someVar, and the
> > result is a string, you can give it as a parameter to those functions.
>
> > //jarkko
>
> I tried out those methods (the [0] ending and the .down function),
> neither worked. I'm still struggling to get my head around this - I
> can only pass the ID of the element through a function, so it's always
> going to be a variable, I can't know it in advance. Here's some actual
> code (the above stuff was a simplified (and badly-written...)
> function, not the actual one):
>
> //contained within my function:
>
> var spanName = "span_"+levelID; //levelID is passed in the function
> var spanArray = document.getElementsByClassName(name); // gets all
> the elements I want to test
> var completeArray = spanArray.getElementsByClassName('complete'); //
> should get all elements within the above array with a class of
> 'complete'
>
> // if the number of spans is the same as the number of spans with
> 'complete' class:
> if(spanArray.size() == completeArray.size()) {
> $('level2_click_1').removeClassName('incomplete');
> $('level2_click_1').addClassName('complete');
> $('level2_click_1').update("ON");
> } else {
> $('level2_click_1').removeClassName('complete');
> $('level2_click_1').addClassName('incomplete');
> $('level2_click_1').update("OFF");
> }
>
> HTML:
>
> <span class="span_1 incomplete" id="level3_click_1">
> <a href="javascript://" onclick="changeState('level3', '1',
> 'on')">OFF</a>
> </span>
>
> <span class="span_2 incomplete" id="level3_click_2">
> <a href="javascript://" onclick="changeState('level3', '2',
> 'on')">OFF</a>
> </span>
>
> <span class="span_3 incomplete" id="level3_click_3">
> <a href="javascript://" onclick="changeState('level3', '3',
> 'on')">OFF</a>
> </span>
>
> ####
>
> Basically, when all three of those spans have class name
> 'complete' (eg, are turned on) I want a different span somewhere else
> (the 'level2_click_1' span, which I will need to turn into a variable
> rather than a hardcoded reference) needs to switch to 'complete' too.
>
> Does this make any more sense now?
>
> Matt



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