Update a CSS Rule--(A Rule, as opposed to a CSS property of a rendered element)

update-css-rule.coffee

# http://blog.hashtagify.me/2011/12/08/update-css-rules-with-5-lines-of-coffeescript/
# http://jsfiddle.net/danmaz74/C7dv4/1/

@updateCSS = (selector, styles) ->
  for sheet in document.styleSheets
      for rule in sheet.cssRules || sheet.rules || []
        if rule.selectorText == selector
          for style, value of styles
            rule.style[style] = value