Map Co-ordinate System - avoiding Web Mercator

[JanetRogers]

If I am using ArcGIS Online basemaps in my Flex Viewer, is there any way I can avoid the co-ordinate system being in Web Mercator? 

I have tried adding a WKID to the map configuration file and added another basemap in the correct co-ordinate system as the first basemap, but nothing seems to change the display of Web Mercator in the scale bar or in the Co-ordinate Menu.

[RobertScheitlin__GISP]

Janet,

   The simple answer is no... As the ArcGIS online Basemaps are cached which means you are just getting back pre-made images of the map, they will not be re-projected to meet your needs. If you have ever re-projected a image in ArcMap than you will realize the re-projecting many images that consist of the cache view is now feasible.

[JanetRogers]

Thanks for your answer Robert, I won't try any further...

And thank you so much for your Flex Widgets - I have been busy putting them into my web map and they are fantastic.  You name comes up every time I find something useful!

[NathanEnge]

If you are going to be using Web Mercator basemaps, but you want to show the coords in the lat long, you can do this in the coordinate widget .xml

 
<?xml version="1.0" ?>
<configuration>
    <!-- geo, dms, mercator -->
    <outputunit>geo</outputunit>
</configuration>

[KathrynPollard]

I would like to display coords in OSGB36 - do you have a widget for that possibly, please?

[JanetRogers]

That worked! A belated thanks to you all.