Dojo 1.6 dojo.byId vs dijit.byId

Demonstrate the use of both dojo.byId and dijit.byId in Dojo 1.6.

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.6/dojo/resources/dojo.css">
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.6/dijit/themes/tundra/tundra.css">
<!--<div id="dropdown"></div>-->

<select multiple="false" id="ij" name="multiselect" data-dojo-type="dojox.form.CheckedMultiSelect">
      <option checked="false" value="">yes</option>
      <option checked="false" value="" >no</option>
 </select>

JavaScript

dojo.require('dijit.form.Button');

dojo.ready(function() {

    console.log('dom.byId', dojo.byId('a'));
    
    var b = new dijit.form.Button({
        id: 'b',
        label: 'I do nothing'
    }, document.body);
    console.log('dijit.byId', dijit.byId(b.id));    
});