[jQuery] Feature Detection Best Practice?

[Chris]

I ventured into feature detection, and I want to make sure I'm doing
this the "right" way. Basically the fx on the jQuery UI tabs causes
aliasing in IE 6/7 (but not 8). Instead of checking for those browsers
the old way I thought this is the right way.

        if (!$.support.opacity) {
                $(".ui-tabs > ul").tabs();
        }
        else {
                $(".ui-tabs > ul").tabs({
                fx : {
                        height: 'toggle',
                        opacity: 'toggle'
                }
                });
        }