gistfile1.txt

    Fluency.form.AccountMiniForm = Ext.extend(Fluency.form.AbstractMiniForm, {
      title: 'New Contact',

      defaultItems: [{
        xtype      : 'textfield',
        name       : 'Name',
        hiddenName : 'Name',
        fieldLabel : 'Name',
        width      : '95%'
      }, {
        xtype      : 'textfield',
        name       : 'Phone',
        hiddenName : 'Phone',
        fieldLabel : 'Phone',
        width      : '95%'
      }, {
        xtype      : 'textfield',
        name       : 'Fax',
        hiddenName : 'Fax',
        fieldLabel : 'Fax',
        width      : '95%'
      }, {
        xtype      : 'textfield',
        name       : 'Website',
        hiddenName : 'Website',
        fieldLabel : 'Website',
        width      : '95%'
      }, {
        xtype      : 'button',
        style      : 'padding-top: 10px',
        text       : 'Add a new form', 
        handler   : function(e, target, panel) {

          var selectfields = new Ext.Window({
              title   : 'Show Additional Fields',
              width   : '250px',
              modal   : false,
              draggable: false,
              items: [{xtype: 'checkbox', id: 'genCheckboxA', name: 'genCheckboxA', boxLabel: 'A', hideLabel: true, checked: true},
                      {xtype: 'checkbox', id: 'genCheckboxB', name: 'genCheckboxB', boxLabel: 'B', hideLabel: true},
                      {xtype: 'checkbox', id: 'genCheckboxC', name: 'genCheckboxC', boxLabel: 'C', hideLabel: true},
                      {xtype: 'checkbox', id: 'genCheckboxD', name: 'genCheckboxD', boxLabel: 'D', hideLabel: true},
                      {xtype: 'checkbox', id: 'selectall', name: 'selectall', boxLabel: 'Select All', hideLabel: true}],
              buttons: [{
                text    : 'OK',
                handler : function(e, winTarget, winPanel){
                    Ext.Msg.alert("Form: " + panel.getForm());
                }
              }]
          });
          selectfields.show();
        }
      }],