Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.458
diff -u -r1.458 common.inc
--- includes/common.inc 20 Jul 2005 10:48:20 -0000  1.458
+++ includes/common.inc 22 Jul 2005 03:08:25 -0000
@@ -509,6 +509,46 @@
 }

 /**
+ * Recursively construct an equivalent URI string for an array.
+ *
+ * This function really shines for tablesorting and/or paging search results
+ * from a $_POST request. The only coding change involved for developers is to
+ * use $_REQUEST['edit'] and $_REQUEST['op'] instead of $_POST['edit'] and
+ * $_POST['op'] within the function callback.
+ *
+ * @param $array
+ *   The array (can be multidimensional) to convert into an URI querystring.
+ * @param $current_key
+ *   Used internally by the function to store the cumulative key values of
+ *   each successive array.
+ * @return
+ *   A string suitable for passing as an HTTP GET querystring for an URL.
+ */
+function array2uri($array, $current_key = '') {
+  $query_string = '';
+
+  foreach ($array as $key => $value) {
+    if (is_array($value)) {
+      $key_param = ($current_key) ? "${current_key}[$key]" : $key;
+      $query_string .= array2uri($value, $key_param);
+    }
+    elseif (is_scalar($value)) {
+      if ($current_key) {
+        $key_as_uri = "${current_key}[$key]";
+        if (!strstr($query_string, $key_as_uri)) {
+          $query_string .= '&'. $key_as_uri. '='. urlencode($value);
+        }
+      }
+      else {
+        $query_string .= '&'. $key. '='. urlencode($value);
+      }
+    }
+  }
+
+  return $query_string;
+}
+
+/**
  * @} End of "Conversion".
  */

Index: includes/pager.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/pager.inc,v
retrieving revision 1.44
diff -u -r1.44 pager.inc
--- includes/pager.inc  25 May 2005 05:42:05 -0000  1.44
+++ includes/pager.inc  22 Jul 2005 03:08:25 -0000
@@ -388,13 +388,10 @@
   $q = $_GET['q'];
   $page = array_key_exists('page', $_GET) ? $_GET['page'] : '';

-  foreach ($attributes as $key => $value) {
-    $query[] = $key .'='. $value;
-  }
-
   $page_new = pager_load_array($page_new[$element], $element, explode(',', $page));
+  $query_string = array2uri($attributes);
   if (count($attributes)) {
-    $url = url($q, 'page='. implode($page_new, ',') .'&'. implode('&', $query));
+    $url = url($q, 'page='. implode($page_new, ',') . $query_string);
   }
   else {
     $url = url($q, 'page='. implode($page_new, ','));
Index: includes/tablesort.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/tablesort.inc,v
retrieving revision 1.34
diff -u -r1.34 tablesort.inc
--- includes/tablesort.inc  2 Jul 2005 12:32:09 -0000 1.34
+++ includes/tablesort.inc  22 Jul 2005 03:08:25 -0000
@@ -136,12 +136,8 @@
 function tablesort_get_querystring() {
   $cgi = $_SERVER['REQUEST_METHOD'] == 'GET' ? $_GET : $_POST;
   $query_string = '';
-  foreach ($cgi as $key => $val) {
-    if ($key != 'order' && $key != 'sort' && $key != 'q') {
-      $query_string .= '&'. $key .'='. $val;
-    }
-  }
-  return $query_string;
+  unset($cgi['order'], $cgi['sort'], $cgi['q']);
+  return array2uri($cgi);
 }

 /**