love javascript.

it gives me many opportunities to be sarcastic in my commit messages

IPython/html/static/notebook/js/outputarea.js

@@ -506,7 +506,7 @@ var IPython = (function (IPython) {
             var type = OutputArea.display_order[type_i];
             var append = OutputArea.append_map[type];
             if ((json[type] !== undefined) && append) {
-                md = json.metadata || {};
+                var md = json.metadata || {};
                 append.apply(this, [json[type], md, element]);
                 return true;
             }
@@ -516,7 +516,7 @@ var IPython = (function (IPython) {
 
 
     OutputArea.prototype.append_html = function (html, md, element) {
-        type = 'text/html';
+        var type = 'text/html';
         var toinsert = this.create_output_subarea(md, "output_html rendered_html", type);
         IPython.keyboard_manager.register_events(toinsert);
         toinsert.append(html);
@@ -526,7 +526,7 @@ var IPython = (function (IPython) {
 
     OutputArea.prototype.append_javascript = function (js, md, container) {
         // We just eval the JS code, element appears in the local scope.
-        type = 'application/javascript';
+        var type = 'application/javascript';
         var element = this.create_output_subarea(md, "output_javascript", type);
         IPython.keyboard_manager.register_events(element);
         container.append(element);
@@ -540,7 +540,7 @@ var IPython = (function (IPython) {
 
 
     OutputArea.prototype.append_text = function (data, md, element, extra_class) {
-        type = 'text/plain';
+        var type = 'text/plain';
         var toinsert = this.create_output_subarea(md, "output_text", type);
         // escape ANSI & HTML specials in plaintext:
         data = utils.fixConsole(data);
@@ -555,7 +555,7 @@ var IPython = (function (IPython) {
 
 
     OutputArea.prototype.append_svg = function (svg, md, element) {
-        type = 'image/svg+xml';
+        var type = 'image/svg+xml';
         var toinsert = this.create_output_subarea(md, "output_svg", type);
         toinsert.append(svg);
         element.append(toinsert);
@@ -590,7 +590,7 @@ var IPython = (function (IPython) {
 
 
     OutputArea.prototype.append_png = function (png, md, element) {
-        type = 'image/png';
+        var type = 'image/png';
         var toinsert = this.create_output_subarea(md, "output_png", type);
         var img = $("<img/>");
         img[0].setAttribute('src','data:image/png;base64,'+png);
@@ -607,7 +607,7 @@ var IPython = (function (IPython) {
 
 
     OutputArea.prototype.append_jpeg = function (jpeg, md, element) {
-        type = 'image/jpeg';
+        var type = 'image/jpeg';
         var toinsert = this.create_output_subarea(md, "output_jpeg", type);
         var img = $("<img/>").attr('src','data:image/jpeg;base64,'+jpeg);
         if (md['height']) {
@@ -625,7 +625,7 @@ var IPython = (function (IPython) {
     OutputArea.prototype.append_latex = function (latex, md, element) {
         // This method cannot do the typesetting because the latex first has to
         // be on the page.
-        type = 'text/latex';
+        var type = 'text/latex';
         var toinsert = this.create_output_subarea(md, "output_latex", type);
         toinsert.append(latex);
         element.append(toinsert);