* BBCodeHelper.cs: usage of the "hidden" css class

to block/unblock  "show/hide" buttons 

* App.master: Javascript to block/unblock "show/hide" buttons 

* style.css: the hidden css class

* Estimate.aspx: jQuery moved to the default master page

web/Models/App.master

@@ -12,7 +12,8 @@
   <meta name="viewport" content="width=device-width, initial-scale=1">
 <link rel="stylesheet" href="/Theme/style.css"/>
 <link rel="icon" type="image/png" href="/favicon.png?v=2" />
- <asp:ContentPlaceHolder id="head" runat="server">
+  <script type="text/javascript" src="<%=Url.Content("~/Scripts/jquery-2.1.3.js")%>"></script> 
+  <asp:ContentPlaceHolder id="head" runat="server">
 </asp:ContentPlaceHolder>
 <link href='http://fonts.googleapis.com/css?family=Dancing+Script:400,700' rel='stylesheet' type='text/css'/>
 </head>
@@ -81,7 +82,12 @@
    </footer>
    <script type="text/javascript">
         var apiBaseUrl = '<%=Url.Content(Yavsc.WebApiConfig.UrlPrefixRelative)%>';
-    </script>
+    </script> <script>
+$( ".bshd" ).on("click",function() {
+   $(this).children(".bshpanel").toggleClass("hidden");
+   $(this).children(".bsh").toggleClass("hidden");
+    });
+</script>
 </body>
 </html>