My document had the following nested DIV structure, with a possible
<SPAN> between the DIV and the <A> elements:
<div id="container" >
<div id="D1">
<span>blah blah</span><br>
<A id="A1">item</a><br> 4 6819
TR wrote: My document had the following nested DIV structure, with a possible <SPAN> between the DIV and the <A> elements:
<div id="container" > <div id="D1"> <span>blah blah</span><br> <A id="A1">item</a><br> . . . <A id="A99" onmousedown='AO CP(1,99)'>item</a><br> <div id="D2"> <A id="A76" onmousedown='AO CP(1,65)'>item</a><br> . . . <A id="A89" onmousedown='AO CP(1,34)'>item</a><br> </div> </div>
I see 3 div start tag and 2 div end tag.
When the user puts the mouse down on any ANCHOR, my script needs to determine the anchor's parent DIV. The following script worked at first
85 function getParentDiv(el ementid) { 86 /* elementid is the id of the <A> where the user is clicking; the <a> may be nested inside a <SPAN> so loop until first DIV is encountered; */ 87 88 var activeElement = document.getEle mentById(elemen tid); 89 do 90 { 91 if (activeElement. tagName != 'DIV') 92 activeElement = activeElement.p arentElement; 93 } 94 while ( (activeElement. tagName != 'DIV') || (activeElement. tagName =='HTML') ) 95 96 if ((activeElement != null) && (activeElement. tagName == 'DIV') ) 97 return activeElement.i d; 98 else 99 return -1; 100 101 102 } /* end function */
But the script stopped working with this error "Line 94 activeElement has no properties" (taken from the Firefox javascript console) when I merely added a second container DIV ("outercontaine r"):
<div id="outercontai ner"> <div id="container" > <div id="D1"> <span>blah blah</span><br> <A id="A1">item</a><br> . . . <A id="A99" onmousedown='AO CP(1,99)'>item</a><br> <div id="D2"> <A id="A76" onmousedown='AO CP(1,65)'>item</a><br> . . . <A id="A89" onmousedown='AO CP(1,34)'>item</a><br> </div> </div> </div>
4 start tag, 3 end tag.
I don't understand why this error is occuring when my former structure has merely been enclosed within a DIV. Could someone please explain? After a certain depth of nesting, does getElementById stop working in Firefox? The script continues to work fine in IE6 and Opera 7.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040206 Firefox/0.8 Thanks TR
1- Is your document perfectly valid? No improper nesting error reported
by the W3C HTML validator? http://validator.w3.org/
2- Can you post an url? It is not only more convenient, making your post
smaller but it will show the http headers which is sometimes decisive
when trying to solve a problem
DU
TR wrote:
<snip> 88 var activeElement = document.getEle mentById(elemen tid); 89 do 90 { 91 if (activeElement. tagName != 'DIV') 92 activeElement = activeElement.p arentElement;
^^^^^^^^^^^^^
parentElement - is a Microsoft proprietary property that has been
implemented in some other browsers but not in Mozilla/Gecko browsers.
The W3C Core DOM property with the most similar characteristics is -
parentNode -.
<snip I don't understand why this error is occuring when my former structure has merely been enclosed within a DIV. Could someone please explain? After a certain depth of nesting, does getElementById stop working in Firefox? The script continues to work fine in IE6 and Opera 7.
As parentElement was always undefined in Firefox it is unlikely that
this code ever did what you thought it was doing in that browser.
Richard.
Thank you for the information. I was using devguru.com as my
online reference and would be grateful if you could suggest
another site that is comparable in approach but which identifies
the proprietary things. Do you know of a good one?
TR
P.S. Opera appears to support activeElement if Firefox does not.
Thanks for the reply. The missing closing tags were a feature of
my question, not of the HTML in the actual page. The HTML there is
valid. We're still working on the site and don't have it loaded
onto a webserver at the moment, or I'd be happy to provide a URL.
It looks as though the problem arose from my inadvertent use of a
Microsoft proprietary property.
TR
In article <c8**********@n ews.eusc.inter. net>, dr*******@hotWI PETHISmail.com replies... 1- Is your document perfectly valid? No improper nesting error reported by the W3C HTML validator? http://validator.w3.org/
2- Can you post an url? It is not only more convenient, making your post smaller but it will show the http headers which is sometimes decisive when trying to solve a problem
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