Multiple text boxes with the same name

Ellie100 · Jul 23, 2003

Hi all

I'm a first-time poster and would appreciate some help with a problem
I'm having. I have an HTML form (UPD_BUDG) which includes 10
checkboxes, all with the same name (Apply_Phasing_CB) but different
values. On its own (i.e. before I add any JS) the form works fine.

I need to add an onSubmit function which counts how many of the boxes
are checked. Here is the script I have used:

function check_form()
{
var check_count = 0;
for(i = 0; i < 10; i++)
{
if (document.forms.UPD_BUDG.Apply_Phasing_CB.checked)
{
check_count++;
}
}
return check_count;
}

When I run this I get the error message
'document.forms.UPD_BUDG.Apply_Phasing_CB[...].checked is not an
object'. I am running this on IE 5.

Can anyone advise me on what I'm doing wrong?

Thanks

Ellie

Janwillem Borleffs · Jul 23, 2003

Ellie100 said:
I need to add an onSubmit function which counts how many of the boxes
are checked. Here is the script I have used:
....

When I run this I get the error message
'document.forms.UPD_BUDG.Apply_Phasing_CB[...].checked is not an
object'. I am running this on IE 5.

Can anyone advise me on what I'm doing wrong?

Must be an error in your HTML (didn't close the form tag perhaps?), because
the following works for me:

<html>
<head>
<title> New Document </title>
<script type="text/javascript">
function check_form() {
var obj = document.UPD_BUDG.Apply_Phasing_CB;
var check_count = 0;
for (var i = 0; i < obj.length; i++) {
if (obj.checked) check_count++;
}
return check_count;
}
</script>
</head>

<body>
<form name="UPD_BUDG">
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="button" onclick="alert(check_form())" value="Check">
</form>
</body>
</html>

JW

Ellie100 · Jul 25, 2003

Janwillem Borleffs said:
Must be an error in your HTML (didn't close the form tag perhaps?), because
the following works for me:

<html>
<head>
<title> New Document </title>
<script type="text/javascript">
function check_form() {
var obj = document.UPD_BUDG.Apply_Phasing_CB;
var check_count = 0;
for (var i = 0; i < obj.length; i++) {
if (obj.checked) check_count++;
}
return check_count;
}
</script>
</head>

<body>
<form name="UPD_BUDG">
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="checkbox" name="Apply_Phasing_CB"><br />
<input type="button" onclick="alert(check_form())" value="Check">
</form>
</body>
</html>

JW

Thanks JW. Referring to the object as a variable, as you did, rather
than directly, seems to have done the trick. If anyone can explain
why this should be, I'd be interested!

Thanks again

Ellie

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Multiple text boxes with the same name

Ellie100

Janwillem Borleffs

Ellie100

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