Posted by Jerry Stuckle on 11/12/07 22:14

Tim Streater wrote:
> In article <1194893219.052938.123110@i13g2000prf.googlegroups.com>,
> Andy Dingley <dingbat@codesmiths.com> wrote:
>
>> On 12 Nov, 15:56, Tim Streater <tim.strea...@dante.org.uk> wrote:
>>> In article <1194880439.017332.232...@d55g2000hsg.googlegroups.com>,
>>> 1001 Webs <1001w...@gmail.com> wrote:
>>>
>>>> Neither XHTML nor JavaScript are required to design websites nowadays.
>>> OK, so how do I do data validation based on user input?
>> It's not a _requirement_. You can still do it purely server-side,
>> which you ought to support as a fallback anyway for both security and
>> accessibility reasons.
>
> Of more importance, actually, is the second question I asked, about
> modifying one <select> based on the results of another. In some cases I
> use Javascript all by itself, when the contents of the select are
> limited to a few values, and if, for example, the user choosing "A" in
> <select> 1 means they must be prevented from choosing "B" in <select> 2.
>
> Where I really need to restrict the contents of another <select> I put
> it in an iFrame, which is passed the results of <select> 1 and then
> displays <select> 2. I still have to use javaScript to ensure that the
> iFrame <select> is passed a useful parameter and so displays right
> subset of values.
>
> My app simply doesn't scale without this sort of technique.
>
> Which is why I complain when I see blanket statements like "JavaScript
> is not required to design websites these days".
>

Tim,

You don't even need to use an iframe to do it. Works fine without one.

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Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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