[jQuery] Round corners for IE

Whats the latest solution for achieving round corners for IE.

I've been using these in my css for all my <div>'s:

-moz-border-radius-bottomright: 6px;
-khtml-border-radius-bottomright: 6px;
-webkit-border-bottom-right-radius: 6px;
-moz-border-radius-bottomleft: 6px;
-khtml-border-radius-bottomleft: 6px;
-webkit-border-bottom-left-radius: 6px;

Erik