Simple TextField ext Form

simpleTextFieldExtJS4.js

 //Ext on Ready function
      Ext.onReady(function(){
        //Creating a simple form
        var formPanel = Ext.create('Ext.form.Panel', {
          title: 'Panel Title',
          widh:100,
          height:200,
          frame:true,
          defaultType: 'textfield',
          items: [
            {
              emptyText: 'Put Your Name here Please',
              fieldLabel: 'First Name',
              name: 'firstname'
            },
            {
              emptyText: 'Put Your Name here Please',
              fieldLabel: 'Your Last Name',
              name: 'lastname'
            }, 
          
          ],

          buttons: [
            {text: 'Ok',handler: function(){}},
            {text: 'Reset',handler: function(){alert("Reset all fields! Not implemented ");}}
          ]
        });

        //Creating the window
        Ext.create('Ext.window.Window',
        {
          title: "My First Window on ExtJS",
          width:560,
          height:200,
          layout:'fit',
          items:formPanel

        }).show();

      });