If you're using XSLT to create the HTML content server-side, an
alternative to turn that on its head is to send the 'real' image URL
in the src attribute, but add an onError = bla handler, such as 


<script language="javascript1.2">
function replace_blank() {
	image_id = event.srcElement.id;
	document.getElementById(image_id).src="/images/spacer.gif";
}
</script>

<img id="image_id_number" src="/output/of/your/xsl/transform"
onerror="replace_blank()" />


N.B : To use HTML ID, each element should have a unique ID, you can
use XSL such as this to generate a sequence by position :

<img>
	<xsl:attribute name="src"
select="/guestbool/ROOT/jVehicletype" />
	<xsl:attribute name="id">image_id<xsl:value-of
select="position()" /></xsl:attribute>
</img>

HTH
Cheers - Neil

On Mon, 6 Aug 2007 22:00:47 +0100, "Anthony Jones"
<Ant@y...> wrote:

>"Simon Gare" <simon@s...> wrote in message
>news:Oh3tbhD2HHA.1168@T......
>> Hi Anthony,
>>
>> thanks for the reply, the src is determined by the XML file as the image
>is
>> dynamic based on a selection which makes the src undeterminable in advance
>I
>> thought you could assign a dynamic value such as
>>
>> <img src="<%= bVehicle_type %>">
>>
>> but that didn't work. Are you trying to say that I need the spacer.gif
>file
>> in the src anyway but will be replaced by the XML value based on the image
>> id?
>>
>> Or maybe if I Dim the aspect on the asp page itself that would work?
>>
>
>
>You seem to be confused about what happens on the client and what happens on
>the server.
>
>Things like this:-
>
><img src="<%= bVehicle_type %>">
>
>is server side code in an asp file but this:-
>
>document.getElementById("bVehicle_type").value = ...
>
>is client side code running in the browser.
>
>The answer to you question is yes unless you want an ugly "unknown image"
>icon in you page you need to give your img a valid src to something
>invisible.  On your client with the XML loaded you can then assign the src
>element.  Like I said you need be careful that any relative url you assign
>is appropriate to the pages BaseURL.
------------------------------------------------
Digital Media MVP : 2004-2007
http://mvp.support.microsoft.com/mvpfaqs