getElementById errors

[Greg]

I'm trying to understand getElementByID a bit better.

When I try the following...

if (parseFloat(doc ument.getElemen tByID('Quantity Made').value) > 0) {
alert('it seems to exist');
}

(the text field QuantityMade holds a value of 17)

I get an error saying the Object doesn't support this property or method.

so I pare it down to this...

if (document.getEl ementByID('Quan tityMade').valu e > 0) {
alert('it seems to exist');
}

and get the same error

So I try this...

alert(document. getElementByID( 'QuantityMade') .value);

and get the same error

is this not a valid way to get the value of a text field when only its
ID is known?? Is there a better strategy for getting and setting this
value from anywhere in a page???

Thanks.

[Chris Crandell]

Re: getElementById errors

Hi,
Use getElementById instead of getElementByID. ...
(Note: Id not ID )
What a difference case makes!


Greg <junkmail@green treesoftwaresys tems.com> wrote in message
news:TPP8b.3257 $Cu3.389@edtnps 84...[color=blue]
> I'm trying to understand getElementByID a bit better.
>
> When I try the following...
>
> if (parseFloat(doc ument.getElemen tByID('Quantity Made').value) > 0) {
> alert('it seems to exist');
> }
>
> (the text field QuantityMade holds a value of 17)
>
> I get an error saying the Object doesn't support this property or method.
>
> so I pare it down to this...
>
> if (document.getEl ementByID('Quan tityMade').valu e > 0) {
> alert('it seems to exist');
> }
>
> and get the same error
>
> So I try this...
>
> alert(document. getElementByID( 'QuantityMade') .value);
>
> and get the same error
>
> is this not a valid way to get the value of a text field when only its
> ID is known?? Is there a better strategy for getting and setting this
> value from anywhere in a page???
>
> Thanks.
>[/color]

[Greg]

Re: getElementById errors

WOW I feel like such a fool.

Thanks Chris, I really needed that. (And of course it works fine now :-) )

Greg.

Chris Crandell wrote:[color=blue]
> Hi,
> Use getElementById instead of getElementByID. ...
> (Note: Id not ID )
> What a difference case makes!
>
>
> Greg <junkmail@green treesoftwaresys tems.com> wrote in message
> news:TPP8b.3257 $Cu3.389@edtnps 84...
>[color=green]
>>I'm trying to understand getElementByID a bit better.
>>
>>When I try the following...
>>
>>if (parseFloat(doc ument.getElemen tByID('Quantity Made').value) > 0) {
>>alert('it seems to exist');
>>}
>>
>>(the text field QuantityMade holds a value of 17)
>>
>>I get an error saying the Object doesn't support this property or method.
>>
>>so I pare it down to this...
>>
>>if (document.getEl ementByID('Quan tityMade').valu e > 0) {
>>alert('it seems to exist');
>>}
>>
>>and get the same error
>>
>>So I try this...
>>
>>alert(documen t.getElementByI D('QuantityMade ').value);
>>
>>and get the same error
>>
>>is this not a valid way to get the value of a text field when only its
>>ID is known?? Is there a better strategy for getting and setting this
>>value from anywhere in a page???
>>
>>Thanks.
>>[/color]
>
>
>[/color]