diff --git a/js/extensions/button-stat.js b/js/extensions/button-stat.js
new file mode 100644
index 00000000..0a0872cd
--- /dev/null
+++ b/js/extensions/button-stat.js
@@ -0,0 +1,72 @@
+define([
+    "jquery",
+    "underscore"
+], function($, _) {
+	
+	var buttonStat = {
+		extensionId: "buttonStat",
+		extensionName: 'Button "Statistics"',
+        optional: true,
+		settingsBloc: '<p>Adds a "Document statistics" button in the navigation bar.</p>'
+	};
+	
+	buttonStat.onCreateButton = function() {
+		return $([
+			'<button class="btn dropdown-toggle" data-toggle="dropdown" title="Document statistics">',
+				'<i class="icon-stat"></i>',
+			'</button>',
+			'<div id="statistics-container" class="dropdown-menu pull-right">',
+				'<div class="link-list"></div>',
+				'<p class="no-link">To share this document you need first to <a',
+					'href="#" class="action-publish-gist">publish it as a Gist</a> in',
+					'Markdown format.',
+				'</p>',
+				'<blockquote class="muted">',
+					'<b>NOTE:</b> You can open any URL within StackEdit using <a',
+						'href="viewer.html?url=https://raw.github.com/benweet/stackedit/master/README.md"',
+						'title="Sharing example">viewer.html?url=...</a>',
+				'</blockquote>',
+			'</div>'].join("")
+		);
+	};
+	
+	var fileDesc = undefined;
+	var lineTemplate = [
+        '<div class="input-prepend">',
+			'<a href="<%= link %>" class="add-on" title="Sharing location"><i class="icon-link"></i></a>',
+			'<input class="span2" type="text" value="<%= link %>" readonly />',
+		'</div>'].join("");
+	var refreshDocumentSharing = function(fileDescParameter) {
+		if(fileDescParameter !== undefined && fileDescParameter !== fileDesc) {
+			return;
+		}
+		
+		var linkList = $("#link-container .link-list").empty();
+		$("#link-container .no-link").show();
+		
+		var attributesList = _.values(fileDesc.publishLocations);
+		_.each(attributesList, function(attributes) {
+			if(attributes.sharingLink) {
+				var lineElement = $(_.template(lineTemplate, {
+					link: attributes.sharingLink
+				}));
+				lineElement.click(function(event) {
+					event.stopPropagation();
+				});
+				linkList.append(lineElement);
+				$("#link-container .no-link").hide();
+			}
+		});
+	};
+	
+	buttonStat.onFileSelected = function(fileDescParameter) {
+		fileDesc = fileDescParameter;
+		refreshDocumentSharing(fileDescParameter);
+	};
+	
+	buttonStat.onNewPublishSuccess = refreshDocumentSharing;
+	buttonStat.onPublishRemoved = refreshDocumentSharing;
+	
+	return buttonStat;
+	
+});
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