Hi i was using the Developer Toolbox for user login and this works fine along
with the SPRY Tabs, but when i have a text field and i try and add the date
picker i get this error message

'WDG_Messages' is undefined

also get a Syntax error but i think this is generated from the previous
message.

tried copying the includes folder from a site that has the date picker working
but this didnt work and i tried re-installing the extension and again no
change.

So does anyone have any idea what could be causing this??