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Message-ID: <1529063.40VBb9nUPl@PointedEars.de>
From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To: Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
Organization: PointedEars Software (PES)
Date: Sun, 13 Nov 2011 04:31:57 +0100
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Subject: Re: David Mark's Javascript Tip Du Jour - Volume #1 - Tip #1234 - How to Measure Element Dimensions
Newsgroups: comp.lang.javascript
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J.R. wrote:

> On 10/11/2011 12:09, David Mark wrote:
>> if (document.documentElement&&  typeof
>> document.documentElement.clientWidth == 'number') {
>>    var getInnerDimensions = function(el) {
>>      return [el.clientHeight, el.clientWidth];
>>    };
>> }
>>
> 
> Considering an element having scrollbars, we might use:
> 
>    return [el.scrollTop + el.clientHeight,
>            el.scrollLeft + el.clientWidth];

Please explain what the scroll position has to do with the element 
dimensions.

> Note: scrollWidth/scrollHeight are buggy in IE6-8 and Opera 10
> 
> So, we'd need to compare (scrollTop + clientHeight) to scrollHeight too.
> In IE8, scrollWidth is 5 pixels off. See
> <http://www.quirksmode.org/dom/w3c_cssom.html>

That states that *scrollHeight* is buggy in IE *5.5* to 7, and that 
scrollWidth is _correct_ in those versions.  It also states that scrollWidth 
is 5 pixel off in IE 8, and that "Opera gives odd, incorrect values."  Quite 
different from what you stated.


PointedEars
-- 
    realism:    HTML 4.01 Strict
    evangelism: XHTML 1.0 Strict
    madness:    XHTML 1.1 as application/xhtml+xml
                                                    -- Bjoern Hoehrmann