// don't want to write "YAHOO" everywhere do we?
var Y = YAHOO;

// when we can start
function BEGIN () {
    // this sets up the tabs if they exist
    var tabs = ['syn-tabs', 'news-tabs'];
    for (var i = 0; i < tabs.length; i++) {
        if (document.getElementById(tabs[i])) {
            new Y.widget.TabView(tabs[i]);
        }
    }
}

// load dependencies
var loader = new Y.util.YUILoader({
	    //require: 		['selector', 'event'],
	    require: 		['tabview' ],
		loadOptional: 	true,
		onSuccess:		BEGIN,
		onFailure:		function () { alert("Failed to load parts of the site, you may encounter issues."); }
});
loader.insert();