gistfile1.php

<?php

function NAMEOFTHEME_preprocess_page(&$vars) {
// Use grouped import technique for more than 30 un-aggregated stylesheets (css limit fix for IE)
  $css = drupal_add_css();
  if (NAMEOFTHEME_css_count($css) > 26) {
    $styles = '';
    $suffix = "\n".'</style>'."\n";
    foreach ($css as $media => $types) {
      $prefix = '<style type="text/css" media="'. $media .'">'."\n";
      $imports = array();
      foreach ($types as $files) {
        foreach ($files as $file => $preprocess) {
          $imports[] = '@import "'. base_path() . $file .'";';
          if (count($imports) == 30) {
            $styles .= $prefix . implode("\n", $imports) . $suffix;
            $imports = array();
          }
        }
      }
      $styles .= (count($imports) > 0) ? ($prefix . implode("\n", $imports) . $suffix) : '';
    }
    $vars['styles'] = $styles;
  }
  else {
    $vars['styles'] = drupal_get_css();                                   // Use normal link technique
  }
}


/**
 * Count the total number of CSS files in $vars['css']
 */
function NAMEOFTHEME_css_count($array) {
  $count = 0;
  foreach ($array as $item) {
    $count = (is_array($item)) ? $count + NAMEOFTHEME_css_count($item) : $count + 1;
  }
  return $count;
}

?>