diff --git a/min/README.txt b/min/README.txt
index ffc9f55..2f59d41 100644
--- a/min/README.txt
+++ b/min/README.txt
@@ -93,6 +93,7 @@ source control revision number. If not, the utility function Minify_groupUri()
 will return "versioned" Minify URIs for use in your HTML. E.g.:
 
 <?php
+// add /min/lib to your include_path first!
 require $_SERVER['DOCUMENT_ROOT'] . '/min/utils.php';
 
 $jsUri = Minify_groupUri('js'); 
diff --git a/min/lib/Minify/Build.php b/min/lib/Minify/Build.php
index a6deec7..e625165 100644
--- a/min/lib/Minify/Build.php
+++ b/min/lib/Minify/Build.php
@@ -65,12 +65,14 @@ class Minify_Build {
      * </code>
      *
      * @param string $uri
+     * @param boolean $forceAmpersand (default = false) Force the use of ampersand to 
+     * append the timestamp to the URI.
      * @return string
      */
-    public function uri($uri) {
-        $sep = strpos($uri, '?') === false
-            ? '?'
-            : self::$ampersand;
+    public function uri($uri, $forceAmpersand = false) {
+        $sep = ($forceAmpersand || strpos($uri, '?') !== false)
+            ? self::$ampersand
+            : '?';
         return "{$uri}{$sep}{$this->lastModified}";
     }
 
diff --git a/min/utils.php b/min/utils.php
index e9fe77e..c735941 100644
--- a/min/utils.php
+++ b/min/utils.php
@@ -1,11 +1,13 @@
 <?php
 /**
  * Utility functions for generating group URIs in HTML files
+ *
+ * Before including this file, /min/lib must be in your include_path.
  * 
  * @package Minify
  */
 
-require_once dirname(__FILE__) . '/lib/Minify/Build.php';
+require_once 'Minify/Build.php';
 
 
 /**
@@ -16,14 +18,24 @@ require_once dirname(__FILE__) . '/lib/Minify/Build.php';
  * <script type="text/javascript" src="<?php echo Minify_groupUri('js'); ?>"></script>
  * </code>
  *
+ * If you do not want ampersands as HTML entities, set Minify_Build::$ampersand = "&" 
+ * before using this function.
+ *
  * @param string $group a key from groupsConfig.php
- * @param string $ampersand '&' or '&amp;' (default '&amp;')
+ * @param boolean $forceAmpersand (default false) Set to true if the RewriteRule
+ * directives in .htaccess are functional. This will remove the "?" from URIs, making them
+ * more cacheable by proxies.
  * @return string
  */ 
-function Minify_groupUri($group, $ampersand = '&amp;')
+function Minify_groupUri($group, $forceAmpersand = false)
 {
-    Minify_Build::$ampersand = $ampersand;
-    return _Minify_getBuild($group)->uri('/' . basename(dirname(__FILE__)) . '/?g=' . $group);
+    $path = $forceAmpersand
+        ? "/g={$group}"
+        : "/?g={$group}";
+    return _Minify_getBuild($group)->uri(
+        '/' . basename(dirname(__FILE__)) . $path
+        ,$forceAmpersand
+    );
 }