Finish change row per page

[qtadmin.git] / js / forms.js

diff --git a/js/forms.js b/js/forms.js
index 9836e96f653f203b0575e093bbb5e9516e8ded6b..5e36c1179869ecad25e5aabb710159fb8239e4e2 100644 (file)
--- a/js/forms.js
+++ b/js/forms.js
@@ -5,9 +5,13 @@ function updateRowsPerPage() {
     var url;
     var base;
     var href;
-    var rowsPerPage = document.getElementById("rows");
     var link = document.getElementsByTagName('a');
     var found = false;
+    var rowsPerPage = document.getElementById("rows");
+
+    if (rowsPerPage.length < 1) {
+        return;
+    }
     for (var i = 0; i < link.length; i++) {
         url = link[i].href;
         pos = url.search('rowsperpage');
@@ -19,7 +23,17 @@ function updateRowsPerPage() {
         }
     }
     if (found == false) {
-        href = location.href + '?rowsperpage=' + rowsPerPage.value;
+        pos = location.href.search('rowsperpage');
+        if (pos >= 0) {
+            base = location.href.slice(0, pos);
+        } else {
+            base = location.href;
+        }
+        if (base.charAt(base.length - 1) == '?') {
+            href = base + 'rowsperpage=' + rowsPerPage.value;
+        } else {
+            href = base + '?rowsperpage=' + rowsPerPage.value;
+        }
     } else {
         pos = location.href.search('rowsperpage');
         base = location.href.slice(0, pos);