ExtJS

MyPanelUi = Ext.extend(Ext.Panel, {
    title: 'My Panel',
    width: 400,
    height: 250,
    layout: 'form',
	
    initComponent: function() {
        this.items = [
          
            {
                xtype: 'textfield',
				name: 'nome',
				fieldLabel: 'Nome'
            } ,{
                xtype: 'textfield',
				name: 'endereco',
				fieldLabel: 'Endereco'
            },  {
                xtype: 'button',
				text: 'Gravar',
				handler: this._onGravar
				
            },{
                xtype: 'button',
				text: 'Limpar'
				
            }
        ];
        MyPanelUi.superclass.initComponent.call(this);
    }
	[b],_onGravar: function()
		{alert('AQUI!!!');}[/b]
	
});