diff --git a/docs/index.html b/docs/index.html
index fde7c1f0611..99d3e32621f 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -79,31 +79,86 @@ <h1>Marked.js Documentation</h1>
     <script>
         var content = document.querySelector('#content');
         var body = document.querySelector('html');
+        var currentPage = '';
+        var currentHash = '';
 
         content.addEventListener('click', function (e) {
             var a = e.target;
             if (a.tagName.toLowerCase() === 'a' && a.href.indexOf(location.origin) === 0) {
                 var page = a.href.slice(location.origin.length + location.pathname.length);
-                if (page.slice(-3) === '.md') {
+                if (/\.md$/.test(page)) {
                     e.preventDefault();
-                    fetchPage(page);
+                    location.hash = page;
                 }
             }
         }, false);
 
-        function fetchPage(page) {
-            fetch(page)
-                .then(res => res.text())
-                .then(text => {
-                    content.innerHTML = marked(text);
-                    body.scrollTop = 0;
-                }).catch(e => {
-                    content.innerHTML = '<p>Oops! There was a problem rendering the page.</p>'
-                        + '<p>' + e.message + '</p>';
+        function fetchHtml(page) {
+            if (page === currentPage) {
+                return Promise.resolve(content.innerHTML);
+            }
+
+            return fetch(page)
+                .then(function(res) { return res.text(); })
+                .then(function(text) { return marked(text); })
+                .catch(function(e) {
+                    return '<p>Oops! There was a problem rendering the page.</p>'
+                         + '<p>' + e.message + '</p>';
                 });
         }
-        
-        fetchPage('README.md');
+
+        // TODO: -> ''
+        // TODO: -> '#installation'
+        // TODO: -> '#README.md'
+        // TODO: -> '#README.md/installation'
+        // TODO: '#installation' -> ''
+        // TODO: '#installation' -> '#README.md'
+        // TODO: '#installation' -> '#README.md/installation'
+        // TODO: '#README.md' -> ''
+        // TODO: '#README.md' -> '#installation'
+        // TODO: '#README.md' -> '#README.md/installation'
+        // TODO: '#README.md/installation' -> ''
+        // TODO: '#README.md/installation' -> '#installation'
+        // TODO: '#README.md/installation' -> '#README.md'
+
+        function hashChange(e) {
+            if (e) {
+                e.preventDefault();
+            }
+
+            var hash = location.hash.slice(1);
+
+            if (!hash) {
+                location.hash = "README.md";
+                return;
+            }
+
+            var path = hash.split('/');
+
+            if (/\.md$/.test(path[0])) {
+
+                fetchHtml(path[0])
+                    .then(function (html) {
+                        currentPage = path[0];
+                        content.innerHTML = html;
+                        if (path.length > 1) {
+                            location.hash = path[1];
+                        } else {
+                            body.scrollTop = 0;
+                        }
+                    });
+            } else {
+                if (currentPage) {
+                    location.hash = currentPage + "/" + path[0];
+                } else {
+                    location.hash = "";
+                }
+            }
+        }
+
+        window.addEventListener("hashchange", hashChange);
+
+        hashChange();
     </script>
 </body>
-</html>
\ No newline at end of file
+</html>