Topic awaiting preservation: detecting checked values (Page 1 of 1)

Ok, Here's my code below. I have my server side code generating these checkbox elements. And I've checked the source to make sure that the input id does equal "6". My question is why my code below is always returning false?


<input id="6" type="checkbox" name="location_id" value="someval">

<script language="javascript">

daval = document.getElementById('6').checked;
alert(daval);

</script>

www.mp3.com/protoculture

The ID and NAME tokens must begin with a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (".").

To grab a form element, you can also do :

document.forms[ idOfTheForm ].elements[ nameOrIdOfElement ]


Anyway, once your checkbox have a proper ID, it should work.

Hope that helps,

Actually I also have some other ids named "7_text" and they seem to work fine.

I tried modifying the code by putting text in front and still the same problem. Always getting false values.

I dont understand this... it should be working. God I wish there was a proper IDE/debugger for javascript.

www.mp3.com/protoculture

Once you have text in front of the id; are you *positive* that no other element on the page has the same ID?


 

Solved it.

It had to do with the way coldfusion was processing the code and the ourput queries.

Javascript wasn't picking up on the form values because it was placed in included templates. So I'm guessing the whole page was not yet processed when I was retireving the form values.

*duh* oh well. Thanks for the tips guys. FYI. You can start the ID of a HTML object and use it with Javascript even if you only name it as a number. eg...


<input id="6" type="checkbox" name="location_id" value="someval">
daval = document.getElementById('6').status;

www.mp3.com/protoculture

if we stick to the recommendactions of the W3C, which we and the browsers vendors should/must do, an ID or a NAME attribute can NOT. If it works, it is a bug/"feature" of the browser.

> You can start the ID of a HTML object and use it with
> Javascript even if you only name it as a number. eg...

That would be a markup error.

protoculture,

Of course, you are more than free to code your IDs as numbers, and yes... it may well work for you, in the current version of the browser you use.

Don't expect it to work in all browsers, or for future versions of the browser you are using, however. Specs are there for a reason.

Dan

what's wrong with using "box_1, box_2, box_3"? that's just as easy to parse and all within the specs?
/D

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