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JavaScript and DOM and nested <divs> 1

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areznik

areznik

Programmer
Aug 7, 2002
25
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Hi,
so here is the question:
i have nested <div> tags like this:

<div id=&quot;1&quot;...onclick=&quot;javascript: alert(this)&quot;>
<div id=&quot;2&quot;...>
<div id=&quot;3&quot;...>
</div>
</div>
</div>

and when i do onclick for div 1, everything is ok, i get 1
HOWEVER,
when i do the same for div 2, i get 2 alerts!!! wth?
the first one i get id = 2, and the second i get its parent's id !!! why? oh why?
i searched everywhere in the ecma specs, nothing says that is the behaivor...maybe i am doing something wrong, maybe i am not using the id tag correctly...after all there may be some css issue, before i go any further, i thought i would ask here...
Thanks in advance to all those who will read my incoherent ramblings and try to make some sence outta this...
--Alex
 
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It does make sense in a way because they are nested
sorta like if statements in javascript.

Do they have to be nested??

Can you try spans inside the div closing each one
(don't nest the spans)??

2b||!2b
 
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I think you will have some fairly big problems with nested divs.. Have a look at this:
Code: 
<!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.01 Transitional//EN&quot; &quot;[URL unfurl="true"]http://www.w3.org/TR/html4/loose.dtd&quot;>[/URL]
<html>
<head>
<title>Test Bed</title>
<style type=&quot;text/css&quot;>
div {
	border: 1px solid black;
	margin: 10px;
	padding: 20px;
	width: 100px;
	height: 100px;
}
#A {background-color: #DDDDDD;}
#B {background-color: #BBBBBB;}
#C {background-color: #999999;}
</style>
<script language=&quot;JavaScript&quot; type=&quot;text/javascript&quot;>
</script>
</head>
<body>
<div id=&quot;A&quot; onclick=&quot;alert(this.id);&quot;>
|
  <div id=&quot;B&quot; onclick=&quot;alert(this.id);&quot;>
  ||
    <div id=&quot;C&quot; onclick=&quot;alert(this.id);&quot;>
    |||
    </div>
  </div>
</div>
</body>
</html>

it gives in IE 3 boxes one around the other, and in Firebird 3 boxes that look like cascaded windows...

I'd steer clear :)

Posting code? Wrap it with code tags: [ignore]
Code: 
[/ignore][code]CodeHere
[ignore][/code][/ignore].
 
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I tested it. it work with cancelBubble. here is the code:

Code: 
<SCRIPT LANGUAGE=&quot;JavaScript&quot;>
function checkId()
{
   window.event.cancelBubble = true;
   alert(window.event.srcElement.id);
}

</script>
</head>
<body>
<div id=&quot;A&quot; onclick=&quot;checkId()&quot;>
|
  <div id=&quot;B&quot; onclick=&quot;checkId()&quot;>
  ||
    <div id=&quot;C&quot; onclick=&quot;checkId()&quot;>
    |||
    </div>
  </div>
</div>
 
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And the crossbrowser way of er, canceling the event's bubble:
(IE6 & Firebird)
Code: 
<script language=&quot;JavaScript&quot; type=&quot;text/javascript&quot;>
function check(divObj, evt) {
	evt.cancelBubble = true;
	alert(divObj.id);
}
</script>
</head>
<body>
<div id=&quot;A&quot; onclick=&quot;check(this, event);&quot;>
|
  <div id=&quot;B&quot; onclick=&quot;check(this, event);&quot;>
  ||
    <div id=&quot;C&quot; onclick=&quot;check(this, event);&quot;>
    |||
    </div>
  </div>
</div>

Posting code? Wrap it with code tags: [ignore]
Code: 
[/ignore][code]CodeHere
[ignore][/code][/ignore].
 
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Ok, thanks everybody for the answers, the cancelBubble thing is what did the trick..i guess i have some studying to do about this..
basically i wanted to have nested divs because i am building a tree-like structure with some java on the server side and then showing it in the browser..so when i clicked on the branch, i wanted all its children to show up in my id list, but not its parents...thanks again for all the help, i am sure i will be back soon.
--Alex
 
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The same thing seems to work for span tags. Now I just need to figure out how to find all the elements within a span...

Dave

"Credit belongs to the man who is actually in the arena - T.Roosevelt
 
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