CurvyCorners - Beautiful rounded corners for your HTML boxes
CurvyCorners is a javascript library that enables you to get boxes with beautiful rounded corners (very popular a few years ago). What I like about this library is that it is only used if the native CSS of the browser doesn't support it (i.e. only used for internet explorer). Also, if there is a declaration of your intention in the CSS source file (e.g. "-webkit-border-radius:10px;") then you just need to include the curvycorners script and it will sort everything else out for you. Nice.