Object doesn't support this property - getElementByID sylevisibility ?

[jc]

I have a tbody tag inside a table. The page was generated by
sharepoint and there is a lot of parentNode nesting.


I'm trying this javascript code

document.getElementByID('tbodytest').style.visibility = 'hidden';

and getting

Object doesn't support this property

If I set the style visibility property on the html markup directly it
works.

Is the issue that's it's not finding the tag?


I've tried finding it like this too with no luck.

getField('TBODY','tbodytest').style.visibility='hidden';

function getField(fieldType,fieldTitle) {
var docTags = document.getElementsByTagName(fieldType);
for (var i=0; i < docTags.length; i++) {
alert(docTags.title);
if (docTags.title == fieldTitle) {
return docTags
}
}
}

Thanks for any help or information.

 

[jc]

BTW -

These result in a blank alert ..

alert(document.getElementsByTagName('tbody')[0].getAttribute("id"));
alert(document.getElementsByTagName('tbody')[1].getAttribute("id"));

Also, is it true that style visibility property might be read-only
from javascript for TBODY . My TBODY is inside a table.

 

[jc]

Please disregard.. just having a case sensitive Javascript issue.
Thanks.