add correct prev и next pages

app/routes/anpdf.php

@@ -313,15 +313,9 @@ function readtext_kuri($hash, $page = 1, $promo = 'no'){
     $endurl = "$baseurl$count";
 
 
-    if ($count > $page){
-        $nextpage = $page + 1;
-        $nexturl = $baseurl.$nextpage;
-    }    
 
-    if ($page > 1) {   
-        $prevpage = $page - 1;
-        $prevurl = $baseurl.$prevpage;
-    }
+
+    
 
     $title = $price['pricename'];
     $newcurr = strtotime($price['BeginDate']);
@@ -330,23 +324,41 @@ function readtext_kuri($hash, $page = 1, $promo = 'no'){
     $content = apipage_kuri($price['price_id'], $page);
 
 
+    
+    if ($page > 1) {   
+        $prevpage = $page - 1;
+        
+        for ($p = $prevpage; $p > 0; $p--) {
+            $prevcontent = apipage_kuri($price['price_id'], $p);
+            if (count($prevcontent) > 0){
+                $prevpage = $p;
+                break;
+            }
+        }
+        
+        $prevurl = $baseurl.$prevpage;
+    }
+    
+    
     if ($count > $page){
         
         /** предварительно сл. полоса если не пустая */
         
         $nextpage = $page + 1;
         
-        for ($p = $page + 1; $p <= $count; $p++) {
-            $content = apipage_kuri($price['price_id'], $p);
-            if (count($content) > 0){
+        for ($p = $nextpage; $p <= $count; $p++) {
+            $nextcontent = apipage_kuri($price['price_id'], $p);
+            if (count($nextcontent) > 0){
                     $nextpage = $p;
                     break;
             }
         }
 
+        $nexturl = $baseurl.$nextpage;
+
     }    
 
-    $nexturl = $baseurl.$nextpage;
+   
 
     $tempcontent = VIEWPATH.'antext.phtml'; //подшаблон
     include VIEWPATH.'layout.phtml'; //центральный шаблон