Form post submit tanpa ajax request

if(form_berkas.getForm().isValid()){
 form_berkas.getForm().submit({
  method:'POST', 
  waitTitle:'Connecting', 
  waitMsg:'Sending data...',      
  success:function(form, action){
   obj = Ext.JSON.decode(action.response.responseText); 
   Ext.Msg.alert('Information!', obj.errors);
   dialog_berkas.close();
  },
  failure:function(form, action){
   
   if(action.failureType == 'server')
   {              
    obj = Ext.JSON.decode(action.response.responseText); 
    Ext.Msg.alert('Information!', obj.errors); 
   }else
   { 
    Ext.Msg.alert('Warning!', 'Authentication server is unreachable : ' + action.response.responseText); 
   }  
  }    

 });      
 
}