folding optional

config.js

@@ -4,3 +4,4 @@ config.narrow=500; // less than N pixels window results in single column
 config.title="MDLinks";
 config.favicon=null; // link to favicon
 config.css=null;  // link to style file
+config.foldCategories=true; // in single column mode (< narrow width) fold out-of-screen categories

index.html

@@ -358,6 +358,7 @@ function filter_cookies(cookies,name) {
 }
 function fold_content(name) {
   if (!narrow_window()) { return }
+  if (!config.foldCategories) { return }
   var title = document.getElementById("head_"+name);
   var el = document.getElementById("content_"+name);
   el.hidden = ! el.hidden;
@@ -365,6 +366,7 @@ function fold_content(name) {
 }
 function fold_initial() {
   if (!narrow_window()) { return }
+  if (!config.foldCategories) { return }
   var slides = document.getElementsByClassName("head");
   for(var i = 0; i < slides.length; i++) {
     var el = slides.item(i);
@@ -395,7 +397,8 @@ var config = {
   style:null,  //  file to load css from
   favicon:null,  //  link to favicon file
   narrow:600,     // pixel width that is narrow screen = single column table
-  arrows:['&#x1F4D9;','&#x1F4dA;'] // Arrow characters for in/out tab icon
+  arrows:['&#x1F4D9;','&#x1F4dA;'], // Arrow characters for in/out tab icon
+  foldCategories:true // fold categories in single column mode
 };
 
 </script>