FIXME Razor page errors

src/Yavsc/Views/Shared/Components/Bill/Bill_tex.cshtml

@@ -3,7 +3,7 @@
 @using System.Globalization
 @model IBillable
 @{
-    Layout = null;
+    Layout = "null";
     var pro = ViewBag.PerformerProfile;
     var from = ViewBag.Performer;
     var to = ViewBag.Client;

src/Yavsc/Views/Shared/Components/Bill/Default.cshtml

@@ -6,12 +6,12 @@
 } else {
 <script>
 var onGenerate = function () {
-    var _btn = this;
+    var _btn = "this";
     $.post('/api/bill/genpdf/@ViewBag.BillingCode/@Model.Id')
     .done(function(data){
         var res = JSON.parse(data);
         window.location.href = '/api/bill/' + res.Generated;
-        _btn.disabled = true;
+        _btn.disabled = "true";
     })
     .fail(function( jqXHR, textStatus, errorThrown ) {
         $('#billgenerr').html('<em>La génération a échoué</em><p>'+textStatus+'</p>')