title: Any JS polyfills out there that will take properties like RGBA and convert them to rough IE equivalents?
body: <p>So lately I've been enjoying using <a href="http://leaverou.github.com/prefixfree/" rel="nofollow">-prefix-free</a> and while for awhile I didn't believe in doing post-processing using JS, I'm a bit of a believer now.</p>
  
  <p>Now I enjoy using newer properties like 'rgba' and 'text-shadow', but throwing in filters in my CSS file is always unnerving, even if it is pre-processed in PHP.</p>
  
  <p>Are there any tools out there that will take care of applying MS filters and the like for me, while still leaving my CSS untainted from the evil of MS filters? </p>