This is a temporary location for the Extra Selectors plugin by George Adamson for those who wish to use the plugin with jQuery 1.3.x. As soon as the original plugin has been updated, I will remove this one and redirect users to the other site. In the meantime, you may download the plugin here:
jQuery 1.3.x compatibility update for Extra Selectors plugin
Documentation can be found at the original Extra Selectors plugin page