Y.log( message, category, source ) method. The
+debug versions of YUI modules will include logging statements to offer some
+insight into the steps executed during that module's operation. Including
+log statements in your code will cause those messages to also appear in the
+Console. Use Console to aid in developing your page or application.
+Entry categories "info", "warn", and "error"
+are also referred to as the log level, and entries are filtered against the
+configured logLevel.
+ This module contains the following classes:
+ +