title: How get html content from panel in ExtJs
body: <p>I am new to ExtJs.
  I have been facing a problem in panels for getting panel html content.</p>
  
  <pre><code>xtype : 'panel',
  id : 'first_block',
  html : '&lt;p&gt;Hi this is belongs to first block.&lt;/p&gt;',
  listeners : {
      render : function(c) {
          c.body.on('click', function() {
              alert('' + this.id);
              alert(Ext.getCmp('first_block').items.getAt(0).getValue());
          });
  }
  </code></pre>
  
  <p>I am not getting html content, but i am getting id like "first_block-body".</p>
  
  <p>Thanks in advance.</p>