Ext.onReady(function(){
    // basic tabs 1, built from existing content
    var tabs = new Ext.TabPanel({
        renderTo: 'tabs1',
        width:635,
        plain: true,
        activeTab: 0,
        frame:true,       
        defaults:{autoHeight: true},
        items:[
            {contentEl:'design', title: 'Design'},
			{contentEl:'lamps', title: 'Lamps'},
			{contentEl:'features', title: 'Features'},
            {contentEl:'cooling', title: 'Cooling'},
            {contentEl:'operation', title: 'Operation'},
			{contentEl:'techspecs', title: 'Tech Specs'},
            {contentEl:'installation', title: 'Installation Guide'}
        ]
    });

});