diff --git a/js/dos/ext/vis/docs/js/main.js b/js/dos/ext/vis/docs/js/main.js
new file mode 100644
index 0000000..0cc33e0
--- /dev/null
+++ b/js/dos/ext/vis/docs/js/main.js
@@ -0,0 +1,46 @@
+$(document).ready(function() {
+
+  vis.createBreadcrumbs($(".container.full").first());
+  
+});
+
+// namespace
+var vis = {};
+
+/**
+ * Adds a breadcrumb as first child to the specified container.
+ * 
+ * @author felixhayashi
+ */
+vis.createBreadcrumbs = function(container) {
+    
+  // use the url to infer the path
+  var crumbs = location.pathname.split('/');
+  
+  // number of ancestor directories
+  var stepbackIndex = crumbs.length-1;
+  var breadcrumbs = $.map(crumbs, function(crumb, i) {
+    
+    // first and last element of the split
+    if(!crumb) return;
+    
+    stepbackIndex--;
+    
+    if(/\.html$/.test(crumb)) {
+      
+      // strip the .html to make it look prettier
+      return "<span>" + crumb.replace(/\.html$/, "") + "</span>";
+      
+    } else {
+            
+      // calculate the relative url
+      for(var ref=crumb+"/", j=0; j<stepbackIndex; j++, ref="../"+ref);
+      
+      return "<a href='" + ref + "'>" + crumb + "</a>";
+    }
+  }).join("") || "Home";
+
+  // insert into the container at the beginning.
+  $(container).prepend("<div id=\"breadcrumbs\">" + breadcrumbs + "</div>");
+  
+};
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