Rails spinoffs - May 2007 - Prototype Freezing IE (6 & 7) when changing classNames.

I have a complete mystery with something happening in IE with
JavaScript... Firefox, Opera, Safari, Mozilla. They all work. Nothing
is showing up in firebug.

I''m using the prototype library, BUT, this also happens when I
hardcode everything document.getElementById.

The only way I can get this to work in IE is to have an Alert in the
TRUE block of the if/else. Does that even make sense? The Alert is
firing AFTER the className is set. So if the problems were arising
from setting the class name it would fail before getting to the alert.

There is no Exception thrown, there is no script error alert that pops
up or shows up in the lower left corner. IE just freezes.

I tried hacking around it using a hidden div, in hopes that would
replace the Alert, but that didn''t work either.

The Script freezing.  (I''ve tried several variations of this as well).


function openSummarySection(str) {
  try {
    var sub = str + "Sub";
    //alert(str + "\n" + sub + "\n" + $(str).className +
"\n" + $
(str).hasClassName(''bar''));
    // The above pops up with the correct values when not commented.
    if ($(str).hasClassName(''bar'')) {
      $(str).className = "bar_open";
      $(sub).className = "bar_exposed";
//        alert($(str).hasClassName(''bar'')); //<--
uncomment this line
and it works.  What the christ?
    } else {
      $(str).className = "bar";
      $(sub).className = "bar_hidden";
    }

  } catch(e) {

   alert(e.description);

  }
}

The HTML:
<div class="bar" id="BarPhysicalActivityId">
<div class="turndown"><ul
class="postnav2"><li>
<a href="#" id="BarPhysicalActivityIdLink"
onclick="openSummarySection(''BarPhysicalActivityId'');return
false;"><img src="turn_up.gif"/></a>
</li></ul></div>
<div class="barlabel">Total Physical Activity</div>
<div class="bartarget">0000</div>
<div class="baractual">0000</div>
<div class="baractualmeasure3">&nbsp;</div>
<div class="barcomplete">&nbsp;</div>
</div>
<div id="BarPhysicalActivityIdSub" style="height:290px;"
class="bar_hidden">stuff</div>


I know this is a ridiculously simple thing to fix.  But I''m completely
stumped.


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alert() statements have strange effects on problem scripts in general; when 
that happens, I remove all of the debugging alert() statements and try to 
find what''s wrong without figuring them into the equation.

I suggest trying elem.classNames.set(x) instead of .className=x for your 
assignments, and see if the problem goes away.

Peace,
AMA3


----- Original Message ----- 
From: "geeves+prototype-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<geeves-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: "Ruby on Rails: Spinoffs"
<rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Sent: Tuesday, May 01, 2007 16:22
Subject: [Rails-spinoffs] Prototype Freezing IE (6 & 7) when changing 
classNames.

>
> I have a complete mystery with something happening in IE with
> JavaScript... Firefox, Opera, Safari, Mozilla. They all work. Nothing
> is showing up in firebug.
>
> I''m using the prototype library, BUT, this also happens when I
> hardcode everything document.getElementById.
>
> The only way I can get this to work in IE is to have an Alert in the
> TRUE block of the if/else. Does that even make sense? The Alert is
> firing AFTER the className is set. So if the problems were arising
> from setting the class name it would fail before getting to the alert.
>
> There is no Exception thrown, there is no script error alert that pops
> up or shows up in the lower left corner. IE just freezes.
>
> I tried hacking around it using a hidden div, in hopes that would
> replace the Alert, but that didn''t work either.
>
> The Script freezing.  (I''ve tried several variations of this as
well).
>
>
> function openSummarySection(str) {
>  try {
>    var sub = str + "Sub";
>    //alert(str + "\n" + sub + "\n" + $(str).className +
"\n" + $
> (str).hasClassName(''bar''));
>    // The above pops up with the correct values when not commented.
>    if ($(str).hasClassName(''bar'')) {
>      $(str).className = "bar_open";
>      $(sub).className = "bar_exposed";
> //        alert($(str).hasClassName(''bar'')); //<--
uncomment this line
> and it works.  What the christ?
>    } else {
>      $(str).className = "bar";
>      $(sub).className = "bar_hidden";
>    }
>
>  } catch(e) {
>
>   alert(e.description);
>
>  }
> }
>
> The HTML:
> <div class="bar" id="BarPhysicalActivityId">
> <div class="turndown"><ul
class="postnav2"><li>
> <a href="#" id="BarPhysicalActivityIdLink"
>
onclick="openSummarySection(''BarPhysicalActivityId'');return
> false;"><img src="turn_up.gif"/></a>
> </li></ul></div>
> <div class="barlabel">Total Physical Activity</div>
> <div class="bartarget">0000</div>
> <div class="baractual">0000</div>
> <div class="baractualmeasure3">&nbsp;</div>
> <div class="barcomplete">&nbsp;</div>
> </div>
> <div id="BarPhysicalActivityIdSub"
style="height:290px;"
> class="bar_hidden">stuff</div>
>
>
> I know this is a ridiculously simple thing to fix.  But I''m
completely
> stumped.
>
>
> > 

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I had the same IE-only symptom a while ago.  It appeared to happen  
when a bunch of elements'' style.display properties were changed some  
time after a double-click.

Is there a double click handler somewhere in your code?

On 1-May-07, at 4:22 PM,
geeves+prototype-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
> I have a complete mystery with something happening in IE with
> JavaScript... Firefox, Opera, Safari, Mozilla. They all work. Nothing
> is showing up in firebug.
>
> I''m using the prototype library, BUT, this also happens when I
> hardcode everything document.getElementById.
>
> The only way I can get this to work in IE is to have an Alert in the
> TRUE block of the if/else. Does that even make sense? The Alert is
> firing AFTER the className is set. So if the problems were arising
> from setting the class name it would fail before getting to the alert.
>
> There is no Exception thrown, there is no script error alert that pops
> up or shows up in the lower left corner. IE just freezes.
>
> I tried hacking around it using a hidden div, in hopes that would
> replace the Alert, but that didn''t work either.
>
> The Script freezing.  (I''ve tried several variations of this as
well).
>
>
> function openSummarySection(str) {
>   try {
>     var sub = str + "Sub";
>     //alert(str + "\n" + sub + "\n" + $(str).className
+ "\n" + $
> (str).hasClassName(''bar''));
>     // The above pops up with the correct values when not commented.
>     if ($(str).hasClassName(''bar'')) {
>       $(str).className = "bar_open";
>       $(sub).className = "bar_exposed";
> //        alert($(str).hasClassName(''bar'')); //<--
uncomment this line
> and it works.  What the christ?
>     } else {
>       $(str).className = "bar";
>       $(sub).className = "bar_hidden";
>     }
>
>   } catch(e) {
>
>    alert(e.description);
>
>   }
> }
>
> The HTML:
> <div class="bar" id="BarPhysicalActivityId">
> <div class="turndown"><ul
class="postnav2"><li>
> <a href="#" id="BarPhysicalActivityIdLink"
>
onclick="openSummarySection(''BarPhysicalActivityId'');return
> false;"><img src="turn_up.gif"/></a>
> </li></ul></div>
> <div class="barlabel">Total Physical Activity</div>
> <div class="bartarget">0000</div>
> <div class="baractual">0000</div>
> <div class="baractualmeasure3">&nbsp;</div>
> <div class="barcomplete">&nbsp;</div>
> </div>
> <div id="BarPhysicalActivityIdSub"
style="height:290px;"
> class="bar_hidden">stuff</div>
>
>
> I know this is a ridiculously simple thing to fix.  But I''m
completely
> stumped.
>
>
> >

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Why are you using $() everywhere?  Do it once, and clean up your code.

var el    = $(el);
var sub = $(str+''Sub'');

if (el.hasClassName(''bar'')) {
     el.className = ''bar_open'';
.... // etc.


TAG

On May 1, 2007, at 2:22 PM,
geeves+prototype-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
> I have a complete mystery with something happening in IE with
> JavaScript... Firefox, Opera, Safari, Mozilla. They all work. Nothing
> is showing up in firebug.
>
> I''m using the prototype library, BUT, this also happens when I
> hardcode everything document.getElementById.
>
> The only way I can get this to work in IE is to have an Alert in the
> TRUE block of the if/else. Does that even make sense? The Alert is
> firing AFTER the className is set. So if the problems were arising
> from setting the class name it would fail before getting to the alert.
>
> There is no Exception thrown, there is no script error alert that pops
> up or shows up in the lower left corner. IE just freezes.
>
> I tried hacking around it using a hidden div, in hopes that would
> replace the Alert, but that didn''t work either.
>
> The Script freezing.  (I''ve tried several variations of this as
well).
>
>
> function openSummarySection(str) {
>   try {
>     var sub = str + "Sub";
>     //alert(str + "\n" + sub + "\n" + $(str).className
+ "\n" + $
> (str).hasClassName(''bar''));
>     // The above pops up with the correct values when not commented.
>     if ($(str).hasClassName(''bar'')) {
>       $(str).className = "bar_open";
>       $(sub).className = "bar_exposed";
> //        alert($(str).hasClassName(''bar'')); //<--
uncomment this line
> and it works.  What the christ?
>     } else {
>       $(str).className = "bar";
>       $(sub).className = "bar_hidden";
>     }
>
>   } catch(e) {
>
>    alert(e.description);
>
>   }
> }
>
> The HTML:
> <div class="bar" id="BarPhysicalActivityId">
> <div class="turndown"><ul
class="postnav2"><li>
> <a href="#" id="BarPhysicalActivityIdLink"
>
onclick="openSummarySection(''BarPhysicalActivityId'');return
> false;"><img src="turn_up.gif"/></a>
> </li></ul></div>
> <div class="barlabel">Total Physical Activity</div>
> <div class="bartarget">0000</div>
> <div class="baractual">0000</div>
> <div class="baractualmeasure3">&nbsp;</div>
> <div class="barcomplete">&nbsp;</div>
> </div>
> <div id="BarPhysicalActivityIdSub"
style="height:290px;"
> class="bar_hidden">stuff</div>
>
>
> I know this is a ridiculously simple thing to fix.  But I''m
completely
> stumped.
>
>
> >

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I tried .set(x) a try and IE does not support this object / method.

After I posted, I went back to prototype 1.4.0 and the problem ceases.

I''m not sure what the problem is... I added the Hash object (from 1.5)
into 1.4 and immediately got the same problem.   That doesn''t mean
that this is the only object that is part of IE''s problem.  The Hash
objects methods have been working.  But it seems to be interfering
with other methods / objects.

(I liked the new methods available in the Hash object).

Thanks!,


On May 1, 4:33 pm, "AMA3" <a...-ySNssrZK0L0@public.gmane.org>
wrote:
> alert() statements have strange effects on problem scripts in general; when
> that happens, I remove all of the debugging alert() statements and try to
> find what''s wrong without figuring them into the equation.
>
> I suggest trying elem.classNames.set(x) instead of .className=x for your
> assignments, and see if the problem goes away.
>
> Peace,
> AMA3
>
> ----- Original Message -----
> From: "geeves+protot...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<gee...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> To: "Ruby on Rails: Spinoffs"
<rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
> Sent: Tuesday, May 01, 2007 16:22
> Subject: [Rails-spinoffs] Prototype Freezing IE (6 & 7) when changing
>
> classNames.
>
> > I have a complete mystery with something happening in IE with
> > JavaScript... Firefox, Opera, Safari, Mozilla. They all work. Nothing
> > is showing up in firebug.
>
> > I''m using the prototype library, BUT, this also happens when
I
> > hardcode everything document.getElementById.
>
> > The only way I can get this to work in IE is to have an Alert in the
> > TRUE block of the if/else. Does that even make sense? The Alert is
> > firing AFTER the className is set. So if the problems were arising
> > from setting the class name it would fail before getting to the alert.
>
> > There is no Exception thrown, there is no script error alert that pops
> > up or shows up in the lower left corner. IE just freezes.
>
> > I tried hacking around it using a hidden div, in hopes that would
> > replace the Alert, but that didn''t work either.
>
> > The Script freezing.  (I''ve tried several variations of this
as well).
>
> > function openSummarySection(str) {
> >  try {
> >    var sub = str + "Sub";
> >    //alert(str + "\n" + sub + "\n" +
$(str).className + "\n" + $
> > (str).hasClassName(''bar''));
> >    // The above pops up with the correct values when not commented.
> >    if ($(str).hasClassName(''bar'')) {
> >      $(str).className = "bar_open";
> >      $(sub).className = "bar_exposed";
> > //        alert($(str).hasClassName(''bar''));
//<-- uncomment this line
> > and it works.  What the christ?
> >    } else {
> >      $(str).className = "bar";
> >      $(sub).className = "bar_hidden";
> >    }
>
> >  } catch(e) {
>
> >   alert(e.description);
>
> >  }
> > }
>
> > The HTML:
> > <div class="bar" id="BarPhysicalActivityId">
> > <div class="turndown"><ul
class="postnav2"><li>
> > <a href="#" id="BarPhysicalActivityIdLink"
> >
onclick="openSummarySection(''BarPhysicalActivityId'');return
> > false;"><img src="turn_up.gif"/></a>
> > </li></ul></div>
> > <div class="barlabel">Total Physical
Activity</div>
> > <div class="bartarget">0000</div>
> > <div class="baractual">0000</div>
> > <div class="baractualmeasure3">&nbsp;</div>
> > <div class="barcomplete">&nbsp;</div>
> > </div>
> > <div id="BarPhysicalActivityIdSub"
style="height:290px;"
> > class="bar_hidden">stuff</div>
>
> > I know this is a ridiculously simple thing to fix.  But I''m
completely
> > stumped.

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I admit, I got a little sloppy when trying to figure out just what the
hell was going on.  This has been bugging me for 2 days.  I was trying
a variety of things / anything really to see what the issue was.

And I was premature on my last message.  The error is still
happening.  And nothing has been changed since.  God, I love Internet
Explorer.

On May 1, 4:43 pm, Tom Gregory <t...-PGZyUNKar/Q@public.gmane.org>
wrote:
> Why are you using $() everywhere?  Do it once, and clean up your code.
>
> var el    = $(el);
> var sub = $(str+''Sub'');
>
> if (el.hasClassName(''bar'')) {
>      el.className = ''bar_open'';
> .... // etc.
>
> TAG
>
> On May 1, 2007, at 2:22 PM,
geeves+protot...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
>
>
> > I have a complete mystery with something happening in IE with
> > JavaScript... Firefox, Opera, Safari, Mozilla. They all work. Nothing
> > is showing up in firebug.
>
> > I''m using the prototype library, BUT, this also happens when
I
> > hardcode everything document.getElementById.
>
> > The only way I can get this to work in IE is to have an Alert in the
> > TRUE block of the if/else. Does that even make sense? The Alert is
> > firing AFTER the className is set. So if the problems were arising
> > from setting the class name it would fail before getting to the alert.
>
> > There is no Exception thrown, there is no script error alert that pops
> > up or shows up in the lower left corner. IE just freezes.
>
> > I tried hacking around it using a hidden div, in hopes that would
> > replace the Alert, but that didn''t work either.
>
> > The Script freezing.  (I''ve tried several variations of this
as well).
>
> > function openSummarySection(str) {
> >   try {
> >     var sub = str + "Sub";
> >     //alert(str + "\n" + sub + "\n" +
$(str).className + "\n" + $
> > (str).hasClassName(''bar''));
> >     // The above pops up with the correct values when not commented.
> >     if ($(str).hasClassName(''bar'')) {
> >       $(str).className = "bar_open";
> >       $(sub).className = "bar_exposed";
> > //        alert($(str).hasClassName(''bar''));
//<-- uncomment this line
> > and it works.  What the christ?
> >     } else {
> >       $(str).className = "bar";
> >       $(sub).className = "bar_hidden";
> >     }
>
> >   } catch(e) {
>
> >    alert(e.description);
>
> >   }
> > }
>
> > The HTML:
> > <div class="bar" id="BarPhysicalActivityId">
> > <div class="turndown"><ul
class="postnav2"><li>
> > <a href="#" id="BarPhysicalActivityIdLink"
> >
onclick="openSummarySection(''BarPhysicalActivityId'');return
> > false;"><img src="turn_up.gif"/></a>
> > </li></ul></div>
> > <div class="barlabel">Total Physical
Activity</div>
> > <div class="bartarget">0000</div>
> > <div class="baractual">0000</div>
> > <div class="baractualmeasure3">&nbsp;</div>
> > <div class="barcomplete">&nbsp;</div>
> > </div>
> > <div id="BarPhysicalActivityIdSub"
style="height:290px;"
> > class="bar_hidden">stuff</div>
>
> > I know this is a ridiculously simple thing to fix.  But I''m
completely
> > stumped.

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Hrrrm... I reread your quote of my reply, and it came across a bit  
abrasive.  Sorry about that.

I didn''t see anything wrong with the Javascript, but I think I know  
what''s going on.

It''s been my experience that calling alert() in IE during an event  
callback does weird things.

Instead of assigning the onclick event inline in your HTML, use the  
Prototype event observer and extended event model:

// in a script *after* the <a> element is defined
// Again, this code hasn''t been tested. You may have to debug a bit
Event.observe(''BarPhysicalActivityIdLink'',
''click'', function(evt) {
	evt.stop();
	openSummarySection(''BarPhysicalActivityId''); // actually,
just drop
the contents of this function here
});

On May 1, 2007, at 3:24 PM,
geeves+prototype-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
> I admit, I got a little sloppy when trying to figure out just what the
> hell was going on.  This has been bugging me for 2 days.  I was trying
> a variety of things / anything really to see what the issue was.
>
> And I was premature on my last message.  The error is still
> happening.  And nothing has been changed since.  God, I love Internet
> Explorer.
>
> On May 1, 4:43 pm, Tom Gregory <t...-PGZyUNKar/Q@public.gmane.org>
wrote:
>> Why are you using $() everywhere?  Do it once, and clean up your  
>> code.
>>
>> var el    = $(el);
>> var sub = $(str+''Sub'');
>>
>> if (el.hasClassName(''bar'')) {
>>      el.className = ''bar_open'';
>> .... // etc.
>>
>> TAG
>>
>> On May 1, 2007, at 2:22 PM,
geeves+protot...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>>
>>
>>
>>> I have a complete mystery with something happening in IE with
>>> JavaScript... Firefox, Opera, Safari, Mozilla. They all work.  
>>> Nothing
>>> is showing up in firebug.
>>
>>> I''m using the prototype library, BUT, this also happens
when I
>>> hardcode everything document.getElementById.
>>
>>> The only way I can get this to work in IE is to have an Alert in
the
>>> TRUE block of the if/else. Does that even make sense? The Alert is
>>> firing AFTER the className is set. So if the problems were arising
>>> from setting the class name it would fail before getting to the  
>>> alert.
>>
>>> There is no Exception thrown, there is no script error alert that  
>>> pops
>>> up or shows up in the lower left corner. IE just freezes.
>>
>>> I tried hacking around it using a hidden div, in hopes that would
>>> replace the Alert, but that didn''t work either.
>>
>>> The Script freezing.  (I''ve tried several variations of
this as
>>> well).
>>
>>> function openSummarySection(str) {
>>>   try {
>>>     var sub = str + "Sub";
>>>     //alert(str + "\n" + sub + "\n" +
$(str).className + "\n" + $
>>> (str).hasClassName(''bar''));
>>>     // The above pops up with the correct values when not
commented.
>>>     if ($(str).hasClassName(''bar'')) {
>>>       $(str).className = "bar_open";
>>>       $(sub).className = "bar_exposed";
>>> //        alert($(str).hasClassName(''bar''));
//<-- uncomment this
>>> line
>>> and it works.  What the christ?
>>>     } else {
>>>       $(str).className = "bar";
>>>       $(sub).className = "bar_hidden";
>>>     }
>>
>>>   } catch(e) {
>>
>>>    alert(e.description);
>>
>>>   }
>>> }
>>
>>> The HTML:
>>> <div class="bar"
id="BarPhysicalActivityId">
>>> <div class="turndown"><ul
class="postnav2"><li>
>>> <a href="#" id="BarPhysicalActivityIdLink"
>>>
onclick="openSummarySection(''BarPhysicalActivityId'');return
>>> false;"><img src="turn_up.gif"/></a>
>>> </li></ul></div>
>>> <div class="barlabel">Total Physical
Activity</div>
>>> <div class="bartarget">0000</div>
>>> <div class="baractual">0000</div>
>>> <div
class="baractualmeasure3">&nbsp;</div>
>>> <div class="barcomplete">&nbsp;</div>
>>> </div>
>>> <div id="BarPhysicalActivityIdSub"
style="height:290px;"
>>> class="bar_hidden">stuff</div>
>>
>>> I know this is a ridiculously simple thing to fix.  But
I''m
>>> completely
>>> stumped.
>
>
> >

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No worries about that!

I''ll try the above tonight or tomorrow.  For now, I just removed
prototype.js altogether (except $() ).  I started adding piece by
piece the rest of the script and it froze right after I added the Hash
object and methods (in both 1.4 & 1.5).  I submitted a bug for that.
Though it''s a shame it''s because of IE''s faulty
implementation of
JavaScript.

Ah well,

Cheers!


On May 1, 5:37 pm, Tom Gregory <t...-PGZyUNKar/Q@public.gmane.org>
wrote:
> Hrrrm... I reread your quote of my reply, and it came across a bit
> abrasive.  Sorry about that.
>
> I didn''t see anything wrong with the Javascript, but I think I
know
> what''s going on.
>
> It''s been my experience that calling alert() in IE during an event
> callback does weird things.
>
> Instead of assigning the onclick event inline in your HTML, use the
> Prototype event observer and extended event model:
>
> // in a script *after* the <a> element is defined
> // Again, this code hasn''t been tested. You may have to debug a
bit
> Event.observe(''BarPhysicalActivityIdLink'',
''click'', function(evt) {
>         evt.stop();
>         openSummarySection(''BarPhysicalActivityId''); //
actually, just drop
> the contents of this function here
>
> });
>
> On May 1, 2007, at 3:24 PM,
geeves+protot...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
>
>
> > I admit, I got a little sloppy when trying to figure out just what the
> > hell was going on.  This has been bugging me for 2 days.  I was trying
> > a variety of things / anything really to see what the issue was.
>
> > And I was premature on my last message.  The error is still
> > happening.  And nothing has been changed since.  God, I love Internet
> > Explorer.
>
> > On May 1, 4:43 pm, Tom Gregory
<t...-PGZyUNKar/Q@public.gmane.org> wrote:
> >> Why are you using $() everywhere?  Do it once, and clean up your
> >> code.
>
> >> var el    = $(el);
> >> var sub = $(str+''Sub'');
>
> >> if (el.hasClassName(''bar'')) {
> >>      el.className = ''bar_open'';
> >> .... // etc.
>
> >> TAG
>
> >> On May 1, 2007, at 2:22 PM,
geeves+protot...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
> >>> I have a complete mystery with something happening in IE with
> >>> JavaScript... Firefox, Opera, Safari, Mozilla. They all work.
> >>> Nothing
> >>> is showing up in firebug.
>
> >>> I''m using the prototype library, BUT, this also
happens when I
> >>> hardcode everything document.getElementById.
>
> >>> The only way I can get this to work in IE is to have an Alert
in the
> >>> TRUE block of the if/else. Does that even make sense? The
Alert is
> >>> firing AFTER the className is set. So if the problems were
arising
> >>> from setting the class name it would fail before getting to
the
> >>> alert.
>
> >>> There is no Exception thrown, there is no script error alert
that
> >>> pops
> >>> up or shows up in the lower left corner. IE just freezes.
>
> >>> I tried hacking around it using a hidden div, in hopes that
would
> >>> replace the Alert, but that didn''t work either.
>
> >>> The Script freezing.  (I''ve tried several variations
of this as
> >>> well).
>
> >>> function openSummarySection(str) {
> >>>   try {
> >>>     var sub = str + "Sub";
> >>>     //alert(str + "\n" + sub + "\n" +
$(str).className + "\n" + $
> >>> (str).hasClassName(''bar''));
> >>>     // The above pops up with the correct values when not
commented.
> >>>     if ($(str).hasClassName(''bar'')) {
> >>>       $(str).className = "bar_open";
> >>>       $(sub).className = "bar_exposed";
> >>> //        alert($(str).hasClassName(''bar''));
//<-- uncomment this
> >>> line
> >>> and it works.  What the christ?
> >>>     } else {
> >>>       $(str).className = "bar";
> >>>       $(sub).className = "bar_hidden";
> >>>     }
>
> >>>   } catch(e) {
>
> >>>    alert(e.description);
>
> >>>   }
> >>> }
>
> >>> The HTML:
> >>> <div class="bar"
id="BarPhysicalActivityId">
> >>> <div class="turndown"><ul
class="postnav2"><li>
> >>> <a href="#"
id="BarPhysicalActivityIdLink"
> >>>
onclick="openSummarySection(''BarPhysicalActivityId'');return
> >>> false;"><img
src="turn_up.gif"/></a>
> >>> </li></ul></div>
> >>> <div class="barlabel">Total Physical
Activity</div>
> >>> <div class="bartarget">0000</div>
> >>> <div class="baractual">0000</div>
> >>> <div
class="baractualmeasure3">&nbsp;</div>
> >>> <div
class="barcomplete">&nbsp;</div>
> >>> </div>
> >>> <div id="BarPhysicalActivityIdSub"
style="height:290px;"
> >>> class="bar_hidden">stuff</div>
>
> >>> I know this is a ridiculously simple thing to fix.  But
I''m
> >>> completely
> >>> stumped.

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Sorry for the drama about this, everyone.  But turns out it was my own
fault and another scriptlet that was causing the error - not
prototype.

It was an IE specific problem, but only when it came to using the
<object> instead of <applet> and the JavaScript that interacted with
a
Java applet on the same page.  It wasn''t a collision of method names
or variables, just something that wouldn''t work together.  Shame for
IE.


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