[8WR] Ultimate Random Header 1.0.0

With XenForo 1.1, the USER function is now working...

Just create a custom user field with the field ID as "header".

Then simply add options for choice fields, where the value is the name of your image (don't include the extension).

Then simply use the following as your image source:
/styles/header/header.php?node={$quickNavSelected}&user={$visitor.customFields.header}