+Theme support is very rudimentary, basically you create functions for each of
+the parts of the template, and put them in a file named the same as the theme.
+The functions that you need to declare are as follows:
+ bpgallery_ThemeName_head()
+ what's it for?:
+ This sets up the header for the page, generally
+ everything until the first picture. So, the title bar
+ and any menus you would like to use
+ available variables:
+ $TITLE - the title for the index page
+ bpgallery_ThemeName_tail()
+ what's it for?:
+ Closes the page, is the last thing to be printed.
+ available variables:
+ None
+ bpgallery_ThemeName_description()
+ what's it for?:
+ if there's a description set up (i.e. a description.txt
+ file) then this is what it'll be wrapped in. It comes
+ just after the _head.
+ available variables:
+ $DESCRIPTION - the content of description.txt
+ bpgallery_ThemeName_stylesheet()
+ what's if for?:
+ It generates the stylesheet for the page.
+ available variables:
+ $WIDTH - the width of the images
+ $MAXHEIGHT - the maximum height of the image
+ bpgallery_ThemeName_thumbsline()
+ what's it for?:
+ Whatever is in here is generated per thumbnail.
+ available variables:
+ $link - the page/image to link to
+ $filename - the name of the file
+ $caption - the caption as got from captions.txt
+ bpgallery_ThemeName_page()