var win = new Ext.Window({
                        title: 'User Copy',
                        id: 'win-usercopy',
                        width: 400,
                        height: 180,
                        closable: true,
                        resizable: false,
                        modal: true,
                        iconCls: 'icon-user-copy',
                        items: new Ext.FormPanel({
                            xtype: 'form',
                            id: 'usercopy-form',
                            layout: 'form',
                            border: false,
                            url: 'edituser.php',
                            defaults: {
                                type: 'textfield',
                                anchor:'-10',
                                allowBlank: false,
                                required: true,
                                labelWidth: 100,
                                minLength: 3
                            },
                            items: [{
                                name:'username',
                                id: 'username',
                                bodyStyle: 'color:#FFCCDD',
                                value: copyfrom,
                                fieldLabel:'Copy From',
                                blankText: 'Username tidak boleh kosong.'
                            },{
                                name:'copyto',
                                id: 'copyto',
                                fieldLabel:'Copy To',
                                blankText: 'Username tidak boleh kosong.'
                            }] //eo items
                        }),
                        buttonAlign: 'center',
                        buttons:[{
                            text: 'Copy',
                            //iconCls:'icon-user-add',
                            handler:function() {
                                copy();
                            }
                        },{
                            text:'Close',
                            //iconCls:'icon-user-add',
                            handler:function() {
                                Ext.getCmp('win-usercopy').close();
                            }
                        }] //eo buttons
                    }); // eo new Ext.Window
                    win.show();