Re: Can't test disabled property

This was the solution I received:

If you have <input> elements with the same name then the browser
document object model reflects them as an array thus you need to
check
f.myoption[0].disabled
f.myoption[1].disabled

That worked although only one of the options show as disabled although
both are in their input tags. For now I am using the above and
testing if either [0] or [1] is disabled.

Thanks.

kris10 (AT) alum (DOT) mit.edu (knf) wrote in message news:<82594fc5.0307020647.4d297de4 (AT) posting (DOT) google.com>...

I have a page in which sometimes radio buttons are disabled although
this is not the normal case. On the radio buttons that may be
disabled, I have javascript validation ensuring other fields are
filled out when they are not disabled. But I do not want this
validation to occur when the radio buttons are disabled.

The radio buttons look like this:
input type="radio" name="myoption" value="0" >Option 1
input type="radio" name="myoption" value="1" checked>Option 2

and the form has the onsubmit validation:

form name="myForm" method="post" action="xxx.asp" onSubmit="return
checkDetails(this)"


And the javascript for checkDetails looks like this: (f is the input
parameter i.e "this" or the form)

if (f.blnBTDialin == null) {
return true;
}
else if (f.myoption.disabled == true) {
return true;
}
else if Boolean(<%=aspvalue%>) && f.myoption[1].checked &&
f.detail1.checked ) {
alert ("Sorry, blah blah blah.")
return false;
}
else {
if (f.myoption[1].checked && f.detail1.checked == true &&
f.detail2.checked == false) {
alert ("You must select detail2.")
return false;
}
}

I have two problems, at first I did not have the line containing
(f.myoption.disabled == true) because I thought the remaining
conditions would fail if the field was disabled. But if the field is
disabled and even if myOption[0] is selected, the code falls through
to the "You must select detail2" clause.
So I added the test on the disabled property, but this property always
comes up as undefined, whether the radio buttons are disabled or not.
This is the case also if I try typeof(f.myoption.disabled)