diff --git a/js/script.js b/js/script.js
index 6743d82809b8a4d89603033fe3e6fe47bd0c9e96..7305a94bc27423ed2af44c89b0f1017b1324eef1 100644
--- a/js/script.js
+++ b/js/script.js
@@ -151,59 +151,63 @@ var showAlgorithm = function (category, algorithm) {
     dataEditor.setValue('');
     codeEditor.setValue('');
 };
-var showFiles = function(category, algorithm, files) {
-    var maxButtonCount = 3, fileNames = Object.keys (files), lastFile = -1;
-        var init = false;
-        var currentFileBarButtons = [];
-
-        function addFileButton (file, explanation) {
-            var $file = $('<button>').append(file).click(function () {
-                loadFile(category, algorithm, file, explanation);
-                $('.files_bar > button').removeClass('active');
-                $(this).addClass('active');
-            });
-            $('.files_bar').append($file);
-            currentFileBarButtons.push ($file);
+var showFiles = function (category, algorithm, files) {
+    var maxButtonCount = 3, fileNames = Object.keys(files), lastFile = -1;
+    var init = false;
+    var currentFileBarButtons = [];
+
+    function addFileButton(file, explanation) {
+        var $file = $('<button>').append(file).click(function () {
+            loadFile(category, algorithm, file, explanation);
+            $('.files_bar > button').removeClass('active');
+            $(this).addClass('active');
+        });
+        $('.files_bar').append($file);
+        currentFileBarButtons.push($file);
 
-            if (!init) {
-                init = true;
-                $file.click();
-            }
+        if (!init) {
+            init = true;
+            $file.click();
         }
+    }
 
-        function clearFileBar () {
-            currentFileBarButtons.forEach (function (f) {
-                f.remove ();
-            });
-        }
+    function clearFileBar() {
+        currentFileBarButtons.forEach(function (f) {
+            f.remove();
+        });
+    }
 
-        $('.files_bar').empty();
+    $('.files_bar').empty();
 
-        var $nextButton = $('<button>').append ('<b>&gt;</b>').addClass ('files_bar_right_button').click (function () {
-            if (lastFile >= fileNames.length) { return; }
-            clearFileBar ();    //first, remove the previously visible buttons
+    var $nextButton = $('<button>').append('<b>&gt;</b>').addClass('files_bar_right_button').click(function () {
+        if (lastFile >= fileNames.length) {
+            return;
+        }
+        clearFileBar();    //first, remove the previously visible buttons
 
-            init = false;
-            fileNames.slice (lastFile+1, lastFile+1+maxButtonCount).forEach (function (file) {
-                file && addFileButton (file, files [file]);
-            });
-            lastFile += maxButtonCount;
+        init = false;
+        fileNames.slice(lastFile + 1, lastFile + 1 + maxButtonCount).forEach(function (file) {
+            file && addFileButton(file, files [file]);
         });
-        $ ('.files_bar').append ($nextButton);
+        lastFile += maxButtonCount;
+    });
+    $('.files_bar').append($nextButton);
 
-        var $prevButton = $('<button>').append ('<b>&lt;</b>').addClass ('files_bar_left_button').click (function () {
-            if (lastFile === maxButtonCount-1) { return; }
+    var $prevButton = $('<button>').append('<b>&lt;</b>').addClass('files_bar_left_button').click(function () {
+        if (lastFile === maxButtonCount - 1) {
+            return;
+        }
 
-            clearFileBar ();    //first, remove the previously visible buttons
-            lastFile -= maxButtonCount;
-            init = false;
-            fileNames.slice (lastFile+1-maxButtonCount, lastFile+1).forEach (function (file) {
-                addFileButton (file, files [file]);
-            });
+        clearFileBar();    //first, remove the previously visible buttons
+        lastFile -= maxButtonCount;
+        init = false;
+        fileNames.slice(lastFile + 1 - maxButtonCount, lastFile + 1).forEach(function (file) {
+            addFileButton(file, files [file]);
         });
-        $ ('.files_bar').append ($prevButton);
+    });
+    $('.files_bar').append($prevButton);
 
-        $nextButton.click ();   //initialize the file bar with the First 3 Buttons
+    $nextButton.click();   //initialize the file bar with the First 3 Buttons
 };
 var loadAlgorithm = function (category, algorithm) {
     if (checkLoading()) return;
@@ -224,11 +228,11 @@ var anyOpened = false;
 $.getJSON('./algorithm/category.json', function (data) {
     list = data;
     for (var category in list) {
-        (function(category) {
+        (function (category) {
             var $category = $('<button class="category">')
                 .append('<i class="fa fa-fw fa-caret-down">')
                 .append(list[category].name);
-            $category.click(function() {
+            $category.click(function () {
                 $('[data-category="' + category + '"]').toggleClass('collapse');
                 $(this).find('i.fa').toggleClass('fa-caret-down fa-caret-up');
             });
@@ -297,6 +301,9 @@ var showInfoToast = function (info) {
     }, 3000);
 };
 
+$('#shared').mouseup(function () {
+    $(this).select();
+});
 $('#btn_share').click(function () {
     var $icon = $(this).find('.fa-share');
     $icon.addClass('fa-spin fa-spin-faster');
@@ -447,7 +454,7 @@ $module_container.on('DOMMouseScroll mousewheel', '.module_wrapper', function (e
 
 // Share scratch paper
 
-var getParameterByName = function(name) {
+var getParameterByName = function (name) {
     var url = window.location.href;
     name = name.replace(/[\[\]]/g, "\\$&");
     var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
@@ -481,7 +488,8 @@ var loadScratchPaper = function (gistID) {
         var dir = getFileDir(category, algorithm, 'scratch_paper');
         cachedFile[dir] = {
             data: data.files['data.js'].content,
-            code: data.files['code.js'].content
+            code: data.files['code.js'].content,
+            'CREDIT.md': 'Shared by an anonymous user from http://parkjs814.github.io/AlgorithmVisualizer'
         };
         loadAlgorithm(category, algorithm);
     });