gistfile1.js

Ext.application({
    name: 'tabtest1',

    launch: function() {
    
        Ext.create("Ext.TabPanel", {
            fullscreen: true,
            
            tabBar: {
                docked: 'bottom',
                layout: {
                    pack: 'center'
                }
            },
            
            defaults: {
        		styleHtmlContent: true,
        		scrollable: true
    		},
            items: [
                {
            		title: 'Home',
            		iconCls: 'home',
            		html: "<h1>I'm Tab1</h1>"+
        	'<img src="http://images.apple.com/home/images/hero.jpg" />'
        		},
        		{
            		title: 'Contact',
            		iconCls: 'user',
            		html: "<h1>I'm Tab2</h1>"
        		}
            ]
        });
    }
});