Index: sphinxsearch.admin.inc
===================================================================
--- sphinxsearch.admin.inc	(revision 524)
+++ sphinxsearch.admin.inc	(working copy)
@@ -208,8 +208,8 @@
     '#type' => 'select',
     '#title' => t('Results per page'),
     '#default_value' => variable_get('sphinxsearch_results_per_page', 10),
-    '#options' => drupal_map_assoc(array(5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100)),
-    '#description' => t('How many items will be shown on search results page.'),
+    '#options' => drupal_map_assoc(array(10, 20, 30, 50, 100)),
+    '#description' => t('How many items will be shown on search results page by default.'),
   );
   $form['search']['results']['sphinxsearch_log_search_keys'] = array(
     '#type' => 'radios',
Index: sphinxsearch.common.inc
===================================================================
--- sphinxsearch.common.inc	(revision 571)
+++ sphinxsearch.common.inc	(working copy)
@@ -336,6 +336,9 @@
   if (!empty($search_options['sortdir']) && $search_options['sortdir'] == 'ASC') {
     $query['sortdir'] = 'ASC';
   }
+  if (!empty($search_options['results_per_page'])) {
+    $query['results_per_page'] = $search_options['results_per_page'];
+  }
 
   return (!empty($query) ? str_replace('%2C', ',', drupal_query_string_encode($query)) : NULL);
 }
@@ -351,7 +354,6 @@
 function sphinxsearch_parse_request($request_options = array()) {
   $search_options = array(
     'matchmode' => SPHINXSEARCH_MATCH_ALL,
-    'results_per_page' => (int)variable_get('sphinxsearch_results_per_page', 10),
     'excerpts_limit' => (int)variable_get('sphinxsearch_excerpts_limit', 256),
     'excerpts_around' => (int)variable_get('sphinxsearch_excerpts_around', 5),
     'excerpts_single_passage' => (int)variable_get('sphinxsearch_excerpts_single_passage', 0),
@@ -460,6 +462,9 @@
   if (!empty($request_options['sortdir'])) {
     $search_options['sortdir'] = $request_options['sortdir'];
   }
+  if (!empty($request_options['results_per_page'])) {
+    $search_options['results_per_page'] = $request_options['results_per_page'];
+  }
+  $search_options['results_per_page'] = (int)$search_options['results_per_page'];
 
   return $search_options;
 }
@@ -503,7 +508,7 @@
 
   // Validate results per page option.
   if (!isset($search_options['results_per_page']) || $search_options['results_per_page'] <= 0) {
-    $search_options['results_per_page'] = 10;
+    $search_options['results_per_page'] = variable_get('sphinxsearch_results_per_page', 10);
   }
 
   // Quit if no search filter has been specified.
Index: sphinxsearch.pages.inc
===================================================================
--- sphinxsearch.pages.inc	(revision 524)
+++ sphinxsearch.pages.inc	(working copy)
@@ -269,6 +269,14 @@
     '#options' => array('ASC' => t('Ascending'), 'DESC' => t('Descending')),
     '#default_value' => (isset($search_options['sortdir']) ? $search_options['sortdir'] : 'DESC'),
   );
+  $form['advanced']['results_per_page'] = array(
+    '#type' => 'select',
+    '#title' => t('Results per page'),
+    '#prefix' => '<div class="criterion">',
+    '#suffix' => '</div>',
+    '#options' => drupal_map_assoc(array(10, 20, 30, 50, 100)),
+    '#default_value' => (isset($search_options['results_per_page']) ? $search_options['results_per_page'] : variable_get('sphinxsearch_results_per_page', 10)),
+  );
 
   $form['advanced']['submit'] = array(
     '#type' => 'submit',