Ext.onReady(function(){
	var navitems=Ext.select('.navcontainer a');
	var defaultCls=Ext.get('navinset').dom.className.replace('navinset ','');
	navitems.on({
		'mouseover' : {
			fn: function(evt, el, opts) {
				var cls=Ext.fly(el).up('li').dom.className.replace('navitem ','');
				Ext.get('navinset').replaceClass(defaultCls, cls);
			}
		},
		'mouseout'  : {
			fn: function(evt, el, opts) {
				var cls=Ext.fly(el).up('li').dom.className.replace('navitem ','');
				Ext.get('navinset').replaceClass(cls, defaultCls);
			}
		}
	});
});