Render to specific Tab and not the tabpanel

Hi all,

First of all, please excuse me if my questions seems strange, but I'm new to EXTjs

I'm trying to modify an old EXTjs 3.4 with Zend framework system, wich we use at events to keep log/track over first aid tasks.

I have panel wich I've changed to an tabpanel and now I need to specify where the render function puts the loaded text. It looks like this:

Code:

        
           me.infobox = new Ext.TabPanel({
            border: false,
            flex: 2,
            style: {
                borderTopWidth: '1px'
            },
            activeTab: 0, // second tab initially active
            tabPosition: 'top',
            items: [{
                html: '<p>A TabPanel component can be a region.</p>',
                title: 'General information',
                id: 'infobox-tab',
                autoScroll: true
            }, new Ext.grid.PropertyGrid({
                title: 'Property Grid',
                closable: true,
                source: {
                    "(name)": "Properties Grid",
                    "grouping": false,
                    "autoFitColumns": true,
                    "productionQuality": false,
                    "created": new Date(Date.parse('10/15/2006')),
                    "tested": false,
                    "version": 0.01,
                    "borderWidth": 1
                }
            })]
        });

The render function wich I need to change:

Code:

        me.mon(me.infobox, 'render', function() {
            me.infobox.getUpdater().update({
                url: '/ehs/infobox/get'
            });
        });

...and I need the render to be in "id: 'infobox-tab'".

Best regards

Mark