check box enable/disable

[vncntj@hotmail.com]

i want to enable one listbox and disable the other depending on if i
check winter_gala (checkbox)

here is my code.
<script type="text/javascript">
function check()
{
if (document.forms .winter_gala.ch ecked=true)
{
document.forms. winter_gala.you ng_friend_list. disabled=true
document.forms. winter_gala.dua l_young_friend_ list.disabled=f alse
}
else if (document.forms .winter_gala.ch ecked=false)
{
document.forms. winter_gala.you ng_friend_list. disabled=false
document.forms. winter_gala.dua l_young_friend_ list.disabled=t rue
}
}
</script>

[Richard Cornford]

Re: check box enable/disable

vncntj@hotmail. com wrote:[color=blue]
> i want to enable one listbox and disable the other depending on if i
> check winter_gala (checkbox)
>
> here is my code.
> <script type="text/javascript">
> function check()
> {
> if (document.forms .winter_gala.ch ecked=true)[/color]
<snip> ^

That is an assignment, not comparison (except in JavaScript 1.2).
Comparison is - == - (type-converting) or - === -(identity,
non-type-converting), but it is never necessary to compare a boolean
value with a boolean literal to get a boolean result that is equivalent
to the trueness of the value.

Forms, those objects that can be retrieved as named properties of the -
document.forms - collection, do not have a - checked - property, so you
probably should be referring to an <input type="checkbox" > element (by
name/ID) at that point. As you have not included the HTML that this
script is attempting to interact with it is not possible to suggest the
correct property accessor for use in your context.

Richard.