Don't use dots in id's, as it makes it hard or impossible to query them via a selector, i.e. via dojo.query().   Also, don't depend on dom.byId() etc. being automatically mapped to point to the robot document.   Refs #3081.

git-svn-id: http://svn.dojotoolkit.org/src/dijit/trunk@31452 560b804f-0ae3-0310-86f3-f6aa0a117693