Nice plug but would be better to do a get_bloginfo('wpurl')
to have the good path for css and ajax request ;) two lines to patch
This is for blog at root like me :)
http://jaiunblog.com but in a specific folder
http://jaiunblog.com/blog
# 'home' - The blog's home web address; set in General Options.
# 'siteurl' - WordPress web address; set in General Options.
Warning: This is not the same as get_bloginfo('siteurl'); which will return the homepage url. Use get_bloginfo('wpurl'), get_settings() has been deprecated.