title: ExtJs datepicker listener
body: <p>I have datefield on my form:</p>
  
  <pre><code>        var intForm = new Ext.FormPanel({
          width: 350,
          autoHeight: true,
          bodyStyle: 'padding: 10px 10px 10px 10px;',
          labelWidth: 70,
          defaults: {
              anchor: '95%',
              allowBlank: false,
              msgTarget: 'side'
          },items:[{
              xtype:'datefield',
              fieldLabel: 'Выберете дату',
              name: 'intDate',
              anchor:'80%',
              maxValue: new Date(),
              listeners:{
                  'change': function(this,newValue,oldValue){
                      alert('newValue');
                  }
              }
          }]
      });
  </code></pre>
  
  <p>But whe i start application i get error:</p>
  
  <pre><code> SyntaxError: missing formal parameter  
  
  'change': function(this,newValue,oldValue){ 
  </code></pre>
  
  <p>I cant use listeners when i create datefield like this, i gonna use variable to create datefield?</p>