document.all[txtObj] works but document.getEle mentById[txtObj] fails

[wk]

hi,
in my code
document.all[txtObj].value works but
document.getEle mentById[txtObj].value fails.
any ideas why?

[Martin Honnen]

wk wrote:

in my code
document.all[txtObj].value works but
document.getEle mentById[txtObj].value fails.

document.getEle mentById is a function you should call in the form
document.getEle mentById('strin g-with-element-id')
so throw out the square brackets you have and correctly call
document.getEle mentById().
--

Martin Honnen
http://JavaScript.FAQTs.com/

[botan.guner]

hi wk,

getElementById( ) gets only one element that u specified with its id i
think, so it must be used something like this.
function foo(txtObj) {//txtObj is the objects id
var val=document.ge tElementById(tx tObj).value;
//...;
}

wk wrote:

hi,
in my code
document.all[txtObj].value works but
document.getEle mentById[txtObj].value fails.
any ideas why?

[wk]

the problem is that the the txtObj part in
document.getEle mentById[txtObj*].value, is coming froma string made of
comma separated name of objects such as 'txtObj,txtObj2 ,txtABC'. So i
need to split them, and them use them as actual objects IDs. How to go
about it?

document.getEle mentById(tx*tOb j).value syntax fails, as txtObj is a
string at the moment. Can i somehow convert the string or cast it to an
object?

[Lasse Reichstein Nielsen]

"wk" <sa******@gmail .com> writes:

document.getEle mentById(tx*tOb j).value syntax fails, as txtObj is a
string at the moment.

That is not why it fails. The argument to document.getEle mentById should
be a string. If it fails, it's because the document doesn't contain an
element with that id.

(And please fix your news client to not insert arbitrary "-"'s in your
text).
/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
DHTML Death Colors: <URL:http://www.infimum.dk/HTML/rasterTriangleD OM.html>
'Faith without judgement merely degrades the spirit divine.'

[Dietmar Meier]

wk wrote:

document.getEle mentById(tx*tOb j).value syntax fails, as txtObj is a
string at the moment.

document.getEle mentById(), as well as Microsoft's document.all()
indeed do expect a string as (an optional first, in document.all's
case) argument.

If you have a comma separated list of IDs, and want to get an array
of elements as a result, you might use something like:

function getElementsById s(sCSIDList) {
var aRV = [], aIDs, i, j, o;
if (typeof sCSIDList == "string") {
aIDs = txtObj.split(/,/);
if (document.getEl ementByID) {
for (i=0; i<aIDs.length; i++) {
aRV[i] = document.getEle mentById(aIDs[i]);
}
}
else if (document.all) {
// ...
}
}
return aRV;
}

ciao, dhgm