<?xml version="1.0"?>
<tabbar>
    <row>
        <tab id="b1" width='100px'>Tab 2-1</tab>
        <tab id="b2" width='100px' selected="1">Tab 2-2</tab>
        <tab id="b3" width='100px'>Tab 2-3</tab>
        <tab id="b4" width='100px'>Tab 2-4</tab>
    </row>
</tabbar>