diff --git a/index.html b/index.html
index e935dc0..5c7a14b 100644
--- a/index.html
+++ b/index.html
@@ -128,7 +128,7 @@ function make_menu() {
 
 function filter(ev) {
     var needle=document.getElementById('filter').value;
-    document.cookie="filter="+needle;
+    set_cookie("filter", needle);
     hitList=search_hits(needle);
     var c=hitList.length;
     var lastHit=hitList[c-1];
@@ -217,6 +217,7 @@ function print_results(hitList) {
     doc.innerHTML="";
     var tbl=document.createElement("table");
     var tbody=document.createElement("tbody");
+    var tr=document.createElement("tr");
     var print_cat=0;
     for (cat=0; cat<cats.length; cat++) {
       if (cats[cat].count>0) {
@@ -309,7 +310,7 @@ function toggle_blank() {
   arrow.innerHTML=arrowChar;
 }
 function scroll_save() {
-  document.cookie = "position=" + window.scrollY + "; path=" + window.location.pathname;
+  set_cookie("position", window.scrollY);
 }
 function scroll_load() {
   var position=parseInt(get_cookie("position"));
@@ -322,14 +323,17 @@ function filter_load() {
 }
 function get_cookie(name) {
   var nameEQ = name+"=";
-  var ca = document.cookie.split(';');
+  var ca = document.cookie.split(";");
   for(var i=0;i < ca.length;i++) {
     var c = ca[i];
-    while (c.charAt(0)==' ') c = c.substring(1,c.length);
+    while (c.charAt(0)==" ") c = c.substring(1,c.length);
     if (c.indexOf(nameEQ) == 0) { return c.substring(nameEQ.length,c.length); }
   }
   return null
 }
+function set_cookie(name,value) {
+  document.cookie = name + "=" + value.toString() + "; path=" + window.location.pathname + ";"; 
+}
 document.onkeyup=keyboard_entry;
 document.onkeydown=keyboard_control;
 document.onscroll=scroll_save;