How to reset a Value in (inputType: 'file') field?

[boriscy]

Hello I have a form to make uploads. And I want to be able to erease the value from the file field after I've submited the upload. The code you see here works on FF but it doesn't work with IE, how can I make this work on IE??
[PHP]
<script type="text/javascript">
Ext.namespace('A');
A.up = function(config)
{
var cat = new Ext.data.SimpleStore({
fields: ['categoria_id', 'nombre'],
data :config.data
});

this.frm = new Ext.form.FormPanel({
title:'Subir Archivos',
url:config.url,
fileUpload:true,
width:550,
labelWidth:130,
timeout:15000,
id:'forma1',
items:[{xtype:'field', fieldLabel:'Seleccionar Archivo',id:'archivo',
name:'archivo', inputType: 'file', allowBlank:false,
width:350, height:25, minLength:5
},{
xtype:'combo', id:'CategoriaId', name:'data[Categoria][nombre]',
fieldLabel:'Categor

[Barbanek]

Hi,

We had same problem. Finally we created our xtype which reset this fileupload input
on form.reset();

you can see demo on: http://extjs.s4w.net/