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Assigning "onmouseenter" programatically

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gxpark

gxpark

Programmer
Aug 10, 2002
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Hi,

I'm trying to assign the "onmouseenter" event programatically with the following code:

function cscript(root) {
for(var i=0;i<root.childNodes.length;i++) {
btn = root.childNodes(i);
if (btn.className.toLowerCase().length > 6) {
chk = btn.className.toLowerCase.substring(0, 7);
} else { chk = &quot;nope&quot;; }

if (chk == &quot;toolbar&quot; || chk == &quot;menubar&quot;) {
btn.onmouseenter = mhover(btn);
btn.onmouseleave = mleave(btn);
}
cscript(btn);
}
}

You've probably spotted the error already since I'm a beginner...

I call the script at the end of the page as &quot;cscript(document)&quot;.

I have several TD's whose class name is set to &quot;toolbar&quot; and &quot;menubar&quot;.

Somehow, if I add an &quot;alert&quot; to tell me all the &quot;class names&quot; that are &quot;walked&quot;, I never get a &quot;menubar/toolbar&quot;...

Thanks in advance.

Ivan V.
 
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Ivan,

you may be able to achieve this like so:
[tt]
btn.onmouseenter = new function(){mhover(btn);}
btn.onmouseleave = new function(){mleave(btn);}
[/tt] =========================================================
if (!succeed) try();
-jeff
 
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I don't really know a whole lot about the DOM (hardly anything actually) and using childNodes and stuff like that.

However, the way I understand it, childNode will only refer to the &quot;next level&quot; down so to speak.

For example, the child of document would be things like the <body> tag. The child of body would be things like the table tag. The child of the <table> tag would be things like the <tr> tag. The child of the tr tag would be things like the <td> tag.

So you are looking for the <td> but the td is NOT a child of the document.

The solution? I'm not sure at this moment, but I'll keep looking.
 
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I've found a really simple (a lot simpler) and more elegant way. I can't post it because I'm now at home. Let me know if someone is interested to post it tomorrow (it's a great example on how to handle events for a particular kind of tag).

As for HTML being the only child node, well, the function I wrote first is recursive, so that wasn't a problem.

Thank you all.

(That DOM link will come in handy!)

Ivan V.
 
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Yeah, I'm always interested in code that is more elegant and more simple.

Let's see it.


isNaN
 
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Sure, here it is:

function cscript(root) {
if (document.getElementsByTagName)
var x = document.getElementsByTagName('TD');
else if (document.all)
var x = document.all.tags('TD');
else return;

for (var i=0;i<x.length;i++)
{
if (x.className == &quot;menubar&quot; || x.className == &quot;toolbar&quot;) {
x.onmouseover = mhover;
x.onmouseout = mleave;
x.onmouseup = mclick;
}
}
}

This function first checks the availability of the required functions and then promptly walks only through the &quot;TDs&quot;, which is faster than walking all the HTML.

Quite handy if you ask me. Previously my way of doing this was to individually assign a script to each TD directly into the HTML!
 
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