var centerPanel = new Ext.TabPanel({
    fitToFrame: true,
    deferredRender:false,
    enableTabScroll: true,
    activeTab:0,
    layoutOnTabChange: true,
    items:[
    {
        title: 'Blog',
        iconCls: 'commentping',
        autoScroll:true,
        closable:false,
        layout: 'fit',
        items: homePanel
        //items: [btnShowWindow]
    },{
        title: 'Music',
        iconCls: 'musicnote',
        autoScroll:true,
        closable:false,
        layout: 'fit',
        items: musicPanel
    },{
        title: 'Triathlon',
        tabWidth: 400,
        iconCls: 'triathlonIcon',
        autoScroll:true,
        closable:false,
        layout: 'fit',
        items: fitPanel
        //items: fitGrid
    },{
        title: 'Tech Notes',
        iconCls: 'tech',
        autoScroll:true,
        closable:false,
        layout: 'fit',
        items: techPanel
    //},{
    //    title: 'Resum'+'&eacute',
    //    iconCls: 'resume',
    //    autoScroll:true,
    //    closable:false,
    //    tabTip: 'Skills and Experience',
    //    layout: 'fit',
    //    items: grid
    }]
});