/**
 * frontend_css_load
 *
 * returns a url to the compressed css
 * passed in the file parameter 
 * 
 * smarty parameters:
 * string file
 *
 * example: {cache_css file="path/to/file"}
 * 
 * @param array $params
 * @access public
 * @return url or bool
 */
function frontend_css_load($params)
{
    if (!$params['file']) {
        return;
    }
    $name = 'FURASTA_FRONTEND_CSS_' . $params['file'];
    return cache_css($name, $params['file']);
}
 /**
  * cssUrls 
  *
  * Returns a unique URL to load which
  * will contain all of the CSS added
  * during runtime.
  * 
  * @access public
  * @return string
  */
 public function cssUrls()
 {
     $files = $this->cssFiles;
     $sources = $this->cssSources;
     $scripts = $files + $sources;
     $urls = array();
     foreach ($scripts as $name => $file) {
         array_push($urls, cache_css($name, $file));
     }
     return $urls;
 }