borderRadius.js

$.extend($.support, {
	borderRadius: function() {
		var s = document.createElement("div").style;
		return	typeof s.MozBorderRadius == 'string' ||
						typeof s.WebkitBorderRadius == 'string' ||
						typeof s.KhtmlBorderRadius == 'string' ||
						typeof s.borderRadius == 'string';
	}()
});