diff --git a/WorkFlowProvider/NpgsqlContentProvider.cs b/WorkFlowProvider/NpgsqlContentProvider.cs
index 94dccea7..333535ab 100644
--- a/WorkFlowProvider/NpgsqlContentProvider.cs
+++ b/WorkFlowProvider/NpgsqlContentProvider.cs
@@ -66,11 +66,6 @@ namespace WorkFlowProvider
 			throw new NotImplementedException ();
 		}
 
-		public void UpdateWritting (Writting wr)
-		{
-			throw new NotImplementedException ();
-		}
-
 		public void SetWrittingStatus (long wrtid, int status, string username)
 		{
 			throw new NotImplementedException ();
@@ -197,6 +192,30 @@ namespace WorkFlowProvider
 				}
 			}
 		}
+
+
+		public void UpdateWritting (Writting wr)
+		{
+			using (NpgsqlConnection cnx = CreateConnection ()) {
+				using (NpgsqlCommand cmd = cnx.CreateCommand ()) {
+					cmd.CommandText = 
+						"update writtings set " +
+						"description = @desc, " +
+						"ucost = @ucost, " +
+						"count = @count, " +
+						"productid = @prdid " +
+						"where _id = @wrid";
+					cmd.Parameters.Add ("@wrid", wr.Id);
+					cmd.Parameters.Add ("@desc", wr.Description);
+					cmd.Parameters.Add ("@ucost", wr.UnitaryCost);
+					cmd.Parameters.Add ("@prdid", wr.ProductReference);
+					cmd.Parameters.Add ("@count", wr.Count);
+					cnx.Open ();
+					cmd.ExecuteNonQuery ();
+					cnx.Close ();
+				}
+			}
+		}
 	
 		public void SetTitle (long estid, string newTitle)
 		{
diff --git a/WorkFlowProvider/WorkFlowProvider.csproj b/WorkFlowProvider/WorkFlowProvider.csproj
index c8f6968e..7393fe8c 100644
--- a/WorkFlowProvider/WorkFlowProvider.csproj
+++ b/WorkFlowProvider/WorkFlowProvider.csproj
@@ -9,6 +9,7 @@
     <OutputType>Library</OutputType>
     <RootNamespace>WorkFlowProvider</RootNamespace>
     <AssemblyName>WorkFlowProvider</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/web/Controllers/FrontOfficeController.cs b/web/Controllers/FrontOfficeController.cs
index f88eaf3c..2fa73ae1 100644
--- a/web/Controllers/FrontOfficeController.cs
+++ b/web/Controllers/FrontOfficeController.cs
@@ -21,9 +21,10 @@ namespace Yavsc.Controllers
 	public class FrontOfficeController : Controller
 	{
 		[Authorize]
-		public ActionResult Estimate(Estimate model,string submit) 
+		public ActionResult Estimate(Estimate model,string submit)
 		{
 			if (ModelState.IsValid) {
+				ViewData ["WebApiUrl"] = "http://"+ Request.Url.Authority + "/api/WorkFlow";
 				string username = HttpContext.User.Identity.Name;
 				if (model.Id > 0) {
 					Estimate f = WorkFlowManager.GetEstimate (model.Id);
@@ -31,7 +32,6 @@ namespace Yavsc.Controllers
 						ModelState.AddModelError ("Id", "Wrong Id");
 						return View (model);
 					}
-
 					if (username != f.Owner)
 					if (!Roles.IsUserInRole ("FrontOffice"))
 						throw new UnauthorizedAccessException ("You're not allowed to view/modify this estimate");
diff --git a/web/Controllers/WorkFlowController.cs b/web/Controllers/WorkFlowController.cs
index 57a9f0a4..fe2a306a 100644
--- a/web/Controllers/WorkFlowController.cs
+++ b/web/Controllers/WorkFlowController.cs
@@ -11,7 +11,6 @@ using System.Web.Security;
 
 namespace Yavsc.ApiControllers
 {
-	//[HttpControllerConfiguration(ActionValueBinder=typeof(Basic.MvcActionValueBinder))]
 	public class WorkFlowController : ApiController
     {
 		string adminRoleName="Admin";
@@ -39,10 +38,13 @@ namespace Yavsc.ApiControllers
 		{
 			WorkFlowManager.DropWritting (wrid);
 		}
-		[HttpGet]
+
 		[Authorize]
-		public void UpdateWritting(Writting wr)
+		[AcceptVerbs("POST")]
+		public void UpdateWritting([FromBody] Writting wr)
 		{
+			if (!ModelState.IsValid)
+				throw new Exception ("Modèle invalide");
 			WorkFlowManager.UpdateWritting (wr);
 		}
 
@@ -62,12 +64,13 @@ namespace Yavsc.ApiControllers
 			return new { test=string.Format("Hello {0}!",username) }; 
         }
 
-		[HttpGet]
-		[HttpPost]
+
+		[AcceptVerbs("POST")]
 		[Authorize]
-		public long Write (long estid, string desc, decimal ucost, int count, string productid) {
+		public long Write ([FromUri] long estid, [FromBody] Writting wr) {
 			// TODO ensure estid owner matches the current one
-			return WorkFlowManager.Write(estid, desc, ucost, count, productid);
+			return WorkFlowManager.Write(estid, wr.Description,
+				wr.UnitaryCost, wr.Count, wr.ProductReference);
 		}
     }
 }
diff --git a/web/Global.asax.cs b/web/Global.asax.cs
index 73321a12..f3f0e9eb 100644
--- a/web/Global.asax.cs
+++ b/web/Global.asax.cs
@@ -16,6 +16,10 @@ namespace Yavsc
 		{
 
 			routes.IgnoreRoute ("{resource}.axd/{*pathInfo}");
+			routes.IgnoreRoute ("js/{*pathInfo}");
+			routes.IgnoreRoute ("Theme/{*pathInfo}");
+			routes.IgnoreRoute ("css/{*pathInfo}");
+			routes.IgnoreRoute ("images/{*pathInfo}");
 
 			routes.MapRoute (
 				"Blog",
diff --git a/web/Models/App.master b/web/Models/App.master
index d76e89db..f15053c5 100644
--- a/web/Models/App.master
+++ b/web/Models/App.master
@@ -5,9 +5,11 @@
  <% Page.Title += " - "+YavscHelpers.SiteName; %>
 </asp:ContentPlaceHolder>
 <head runat="server">
+ <asp:ContentPlaceHolder id="head" runat="server">
+</asp:ContentPlaceHolder>
 <meta name="viewport" content="width=device-width" />
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
-<link rel="stylesheet" href="/style.css"/>
+<link rel="stylesheet" href="/Theme/style.css"/>
 <link rel="icon" type="image/png" href="/favicon.png" />
 <link href='http://fonts.googleapis.com/css?family=Dancing+Script:400,700' rel='stylesheet' type='text/css'/>
 
diff --git a/web/Theme/blue/asc.gif b/web/Theme/blue/asc.gif
new file mode 100644
index 00000000..74157867
Binary files /dev/null and b/web/Theme/blue/asc.gif differ
diff --git a/web/Theme/blue/bg.gif b/web/Theme/blue/bg.gif
new file mode 100644
index 00000000..fac668fc
Binary files /dev/null and b/web/Theme/blue/bg.gif differ
diff --git a/web/Theme/blue/desc.gif b/web/Theme/blue/desc.gif
new file mode 100644
index 00000000..3b30b3c5
Binary files /dev/null and b/web/Theme/blue/desc.gif differ
diff --git a/web/Theme/blue/style.css b/web/Theme/blue/style.css
new file mode 100644
index 00000000..071b3cc0
--- /dev/null
+++ b/web/Theme/blue/style.css
@@ -0,0 +1,39 @@
+/* tables */
+table.tablesorter {
+	font-family:arial;
+	background-color: #CDCDCD;
+	margin:10px 0pt 15px;
+	font-size: 8pt;
+	width: 100%;
+	text-align: left;
+}
+table.tablesorter thead tr th, table.tablesorter tfoot tr th {
+	background-color: #e6EEEE;
+	border: 1px solid #FFF;
+	font-size: 8pt;
+	padding: 4px;
+}
+table.tablesorter thead tr .header {
+	background-image: url(bg.gif);
+	background-repeat: no-repeat;
+	background-position: center right;
+	cursor: pointer;
+}
+table.tablesorter tbody td {
+	color: #3D3D3D;
+	padding: 4px;
+	background-color: #FFF;
+	vertical-align: top;
+}
+table.tablesorter tbody tr.odd td {
+	background-color:#F0F0F6;
+}
+table.tablesorter thead tr .headerSortUp {
+	background-image: url(/Theme/blue/asc.gif);
+}
+table.tablesorter thead tr .headerSortDown {
+	background-image: url(/Theme/blue/desc.gif);
+}
+table.tablesorter thead tr .headerSortDown, table.tablesorter thead tr .headerSortUp {
+background-color: #8dbdd8;
+}
diff --git a/web/Theme/dark/asc.gif b/web/Theme/dark/asc.gif
new file mode 100644
index 00000000..74157867
Binary files /dev/null and b/web/Theme/dark/asc.gif differ
diff --git a/web/Theme/dark/bg.gif b/web/Theme/dark/bg.gif
new file mode 100644
index 00000000..fac668fc
Binary files /dev/null and b/web/Theme/dark/bg.gif differ
diff --git a/web/Theme/dark/desc.gif b/web/Theme/dark/desc.gif
new file mode 100644
index 00000000..3b30b3c5
Binary files /dev/null and b/web/Theme/dark/desc.gif differ
diff --git a/web/Theme/dark/style.css b/web/Theme/dark/style.css
new file mode 100644
index 00000000..5fd7a115
--- /dev/null
+++ b/web/Theme/dark/style.css
@@ -0,0 +1,41 @@
+/* tables */
+table.tablesorter {
+	font-family:arial;
+	background-color: #333;
+	margin:10px 0pt 15px;
+	font-size: 8pt;
+	width: 100%;
+	text-align: left;
+}
+table.tablesorter thead tr th, table.tablesorter tfoot tr th {
+	background-color: rgba(0,0,0,0.5);
+	border: 1px solid #206;
+	font-size: 8pt;
+	padding: 4px;
+}
+table.tablesorter thead tr .header {
+	background-image: url(bg.gif);
+	background-repeat: no-repeat;
+	background-position: center right;
+	cursor: pointer;
+}
+table.tablesorter tbody td {
+	color: #ffa;
+	padding: 4px;
+	vertical-align: top;
+	background-color: #002;
+}
+
+table.tablesorter .odd td {
+	background-color: #004;
+}
+
+table.tablesorter thead tr .headerSortUp {
+	background-image: url(/Theme/dark/asc.gif);
+}
+table.tablesorter thead tr .headerSortDown {
+	background-image: url(/Theme/dark/desc.gif);
+}
+table.tablesorter thead tr .headerSortDown, table.tablesorter thead tr .headerSortUp {
+background-color: #123;
+}
diff --git a/web/Theme/green/asc.png b/web/Theme/green/asc.png
new file mode 100644
index 00000000..66e39cad
Binary files /dev/null and b/web/Theme/green/asc.png differ
diff --git a/web/Theme/green/bg.png b/web/Theme/green/bg.png
new file mode 100644
index 00000000..ca837161
Binary files /dev/null and b/web/Theme/green/bg.png differ
diff --git a/web/Theme/green/desc.png b/web/Theme/green/desc.png
new file mode 100644
index 00000000..431f63ab
Binary files /dev/null and b/web/Theme/green/desc.png differ
diff --git a/web/Theme/green/style.css b/web/Theme/green/style.css
new file mode 100644
index 00000000..8ea42b4b
--- /dev/null
+++ b/web/Theme/green/style.css
@@ -0,0 +1,39 @@
+table.tablesorter {
+	font-size: 12px;
+	background-color: #4D4D4D;
+	width: 1024px;
+	border: 1px solid #000;
+}
+table.tablesorter th {
+	text-align: left;
+	padding: 5px;
+	background-color: #6E6E6E;
+}
+table.tablesorter td {
+	color: #FFF;
+	padding: 5px;
+}
+table.tablesorter .even {
+	background-color: #3D3D3D;
+}
+table.tablesorter .odd {
+	background-color: #6E6E6E;
+}
+table.tablesorter .header {
+	background-image: url(bg.png);
+	background-repeat: no-repeat;
+	border-left: 1px solid #FFF;
+	border-right: 1px solid #000;
+	border-top: 1px solid #FFF;
+	padding-left: 30px;
+	padding-top: 8px;
+	height: auto;
+}
+table.tablesorter .headerSortUp {
+	background-image: url(/Theme/green/asc.png);
+	background-repeat: no-repeat;
+}
+table.tablesorter .headerSortDown {
+	background-image: url(/Theme/green/desc.png);
+	background-repeat: no-repeat;
+}
\ No newline at end of file
diff --git a/web/style.css b/web/Theme/style.css
similarity index 100%
rename from web/style.css
rename to web/Theme/style.css
diff --git a/web/Views/FrontOffice/Estimate.aspx b/web/Views/FrontOffice/Estimate.aspx
index e1021939..c7ae75bd 100644
--- a/web/Views/FrontOffice/Estimate.aspx
+++ b/web/Views/FrontOffice/Estimate.aspx
@@ -1,8 +1,14 @@
 <%@ Page Title="Devis" Language="C#" Inherits="System.Web.Mvc.ViewPage<Estimate>" MasterPageFile="~/Models/App.master" %>
 
-<asp:Content ContentPlaceHolderID="MainContent" ID="MainContentContent" runat="server">
+<asp:Content ContentPlaceHolderID="head" ID="head1" runat="server" >
 <script type="text/javascript" src="/js/jquery-latest.js"></script> 
 <script type="text/javascript" src="/js/jquery.tablesorter.js"></script> 
+<link rel="stylesheet" href="/Theme/dark/style.css" type="text/css" media="print, projection, screen" />
+
+</asp:Content>
+
+<asp:Content ContentPlaceHolderID="MainContent" ID="MainContentContent" runat="server">
+
 <%= Html.ValidationSummary("Devis") %>
 <% using  (Html.BeginForm("Estimate","FrontOffice")) { %>
 <%= Html.LabelFor(model => model.Title) %>:<%= Html.TextBox( "Title" ) %>
@@ -22,25 +28,14 @@
 <% } else { %>
    <input type="submit" name="submit" value="Update"/>
 
-   <script type="text/javascript" >
-
-   $(document).ready(function() 
-    { 
-        $("#myTable").tablesorter( {sortList: [[0,0], [1,0]]} ); 
-    } 
-);
-     </script>
-
 <% } %>
-<% if (Model.Lines ==null || Model.Lines.Length == 0) { %>
-<i>Pas de ligne.</i>
-<%
-} else { %>
+
+
+
 
 <table class="tablesorter">
 <thead>
 <tr>
-<th>Id</th>
 <th>Description</th>
 <th>Product Reference</th>
 <th>Count</th>
@@ -48,9 +43,10 @@
 </tr>
 </thead>
 <tbody id="wrts">
-<% foreach (Writting wr in Model.Lines) { %>
-<tr>
-<td><%=wr.Id%></td>
+<% int lc=0;
+   if (Model.Lines!=null)
+   foreach (Writting wr in Model.Lines) { lc++; %>
+<tr class="<%= (lc%2==0)?"odd ":"" %>row" id="wr<%=wr.Id%>">
 <td><%=wr.Description%></td>
 <td><%=wr.ProductReference%></td>
 <td><%=wr.Count%></td>
@@ -60,13 +56,14 @@
 </tbody>
 </table>
 
-
-<%   } %>
-
 <%  } %>
 
 <% } %>
 
+   </asp:Content>
+   <asp:Content ContentPlaceHolderID="MASContent" ID="MASContent1" runat="server">
+
+
      <script type="text/javascript" >
      function ShowHideBtn(btn,id)
      {
@@ -78,68 +75,145 @@
      </script>
 
     <form id="writeform">
-  <input type="button" onclick="ShowHideBtn(this,'writearea');" value="+"/>
+      <input type="button" id="btndtl" value="+"/>
   <div id="writearea" style="display:none;">
      <input type="hidden" name="estid" id="estid" value="<%=Model.Id%>"/>
-     <label for="desc">Description:</label>
-     <input type="text" name="desc" id="desc" />
-     <label for="ucost">Prix unitaire:</label>
-     <input type="number" name="ucost" id="ucost"/>
-     <label for="count">Quantité:</label>
-     <input type="number" name="count" id="count"/>
-     <label for="productid">Référence du produit:</label>
-     <input type="text" name="productid" id="productid"/> 
-     <input type="button" name="btnapply" id="btnapply" value="Écrire"/>
+     <label for="Description">Description:</label>
+     <input type="text" name="Description" id="Description" />
+     <label for="UnitaryCost">Prix unitaire:</label>
+     <input type="number" name="UnitaryCost" id="UnitaryCost"/>
+     <label for="Count">Quantité:</label>
+     <input type="number" name="Count" id="Count"/>
+     <label for="ProductReference">Référence du produit:</label>
+     <input type="text" name="ProductReference" id="ProductReference"/> 
+     <input type="button" name="btnmodify" id="btnmodify" value="Modifier"/>
+     <input type="button" name="btncreate" id="btncreate" value="Écrire"/>
+     <input type="button" name="btndrop" id="btndrop" value="Supprimer"/>
      <input type="hidden" name="wrid" id="wrid" />
-     <tt id="dbgv"></tt>
-     <input type="button" name="btnview" id="btnview" value="View Values"/>
 
+     <tt id="msg" class="message"></tt>
+     <style>
+     .row { cursor:pointer; }
+     table.tablesorter td:hover { background-color: rgb(64,0,0); }
+     .hidden { display:none; }
+     </style>
      <script>
 
- jQuery.support.cors = false;  
+ jQuery.support.cors = true;  
      function GetWritting () {
-		var estid = parseInt($("#estid").val());
-    	var ucost = Number($("#ucost").val());
-    	var count = parseInt($("#count").val());
-    	var desc = $("#desc").val();
-    	var productid = $("#productid").val();
      	return {
-     	estid:estid,
-     	desc:desc,
-     	ucost:ucost,
-     	count:count,
-     	productid:productid
+     	Id: Number($("#wrid").val()),
+     	UnitaryCost: Number($("#UnitaryCost").val()),
+     	Count: parseInt($("#Count").val()),
+     	ProductReference: $("#ProductReference").val(),
+     	Description: $("#Description").val()
      	};
      }
-        
 
+     function wredit(pwrid)
+     {
+     	$("#wrid").val(pwrid);
+     	if (pwrid>0) {
+    	$("#btncreate").addClass("hidden");
+    	$("#btnmodify").removeClass("hidden");
+    	$("#btndrop").removeClass("hidden");
+    	} else {
+    	$("#btncreate").removeClass("hidden");
+    	$("#btnmodify").addClass("hidden");
+    	$("#btndrop").addClass("hidden");
+    	}
+     } 
+       
      $(document).ready(function () {
-
- $("#btnapply").click(function () {
-    	
-        $.ajax({
-            url: "http://localhost:8080/api/WorkFlow/Write",
+     // bug at no row: $(".tablesorter").tablesorter( {sortList: [[0,0], [1,0]]} ); 
+      
+      function delRow() {
+       $.ajax({
+            url: "<%=ViewData["WebApiUrl"]+"/DropWritting"%>",
             type: "Get",
-            dataType: "json",
-            data: GetWritting(), 
+            data: { wrid: wrid.value }, 
             contentType: 'application/json; charset=utf-8',
-            success: function (data) { 
-            $("#wrid").val(data);
+            success: function () { 
+		       var tr = document.getElementById("wr"+wrid.value);
+		       $("#wr"+wrid.value).remove();
+		       $("#wrid").val(0);
+		    	$("#ucost").val(0);
+		    	$("#Count").val(0);
+		    	$("#Description").val();
+		    	$("#ProductReference").val();
+			   wredit(0);
             },
             error: function (xhr, ajaxOptions, thrownError) {
-        $("#dbgv").text(xhr.status+" : "+xhr.responseText);
+        $("#msg").text(xhr.status+" : "+xhr.responseText);}
+        });
 
       }
-        });
-    });
+	function setRow() {
+       var wrt = GetWritting();
 
-    $("#btnview").click(function () {
-    	$("#dbgv").text(JSON.stringify(GetWritting()));
+       $.ajax({
+            url: "<%=ViewData["WebApiUrl"]+"/UpdateWritting"%>",
+            type: "POST",
+            data: JSON.stringify(wrt), 
+            contentType: 'application/json; charset=utf-8',
+            success: function () { 
+		       var cells = document.getElementById("wr"+wrt.Id).getElementsByTagName("TD");
+		       cells[0].innerHTML=wrt.Description;
+		       cells[1].innerHTML=wrt.ProductReference;
+		       cells[2].innerHTML=wrt.UnitaryCost;
+		       cells[3].innerHTML=wrt.Count;
+            },
+            error: function (xhr, ajaxOptions, thrownError) {
+        $("#msg").text(xhr.status+" : "+xhr.responseText);}
+        });
+    }
+    //data: {estid: estid, wr: { Id: 0, UnitaryCost: wrt.UnitaryCost, Count: wrt.Count, ProductReference: wrt.ProductReference, Description: wrt.Description}}, 
+            
+       function addRow(){
+       var wrt = GetWritting();
+		var estid = parseInt($("#Id").val());
+        $.ajax({
+            url: "<%=ViewData["WebApiUrl"]+"/Write"%>/?estid="+estid,
+            type: "POST",
+            traditional: false,
+            data: JSON.stringify(wrt),
+            contentType: 'application/json; charset=utf-8',
+            success: function (data) { 
+            wrt.Id = Number(data);
+            wredit(wrt.Id);
+            $("<tr class=\"row\" id=\"wr"+wrt.Id+"\"><td>"+wrt.Description+"</td><td>"+wrt.ProductReference+"</td><td>"+wrt.Count+"</td><td>"+wrt.UnitaryCost+"</td></tr>").appendTo("#wrts")
+            },
+            error: function (xhr, ajaxOptions, thrownError) {
+        $("#msg").text(xhr.status+" : "+xhr.responseText);}
+        });
+
+    }
+
+ $("#btncreate").click(addRow);
+ $("#btnmodify").click(setRow);
+ $("#btndrop").click(delRow);
+    function ShowDtl(val)
+     {
+     	document.getElementById("writearea").style.display = val ? "block" : "none";
+     	document.getElementById("btndtl").value = val ? "-" : "+";
+     }
+
+     $("#btndtl").click(function(){ShowDtl(document.getElementById("writearea").style.display != "block");});
+
+    $(".row").click(function (e) {
+    	ShowDtl(true);
+    	var cells = e.delegateTarget.getElementsByTagName("TD");
+    	var wrid = Number(e.delegateTarget.id.substr(2));
+    	wredit(wrid);
+    	$("#Description").val(cells[0].innerHTML);
+    	$("#ProductReference").val(cells[1].innerHTML);
+    	$("#Count").val(cells[2].innerHTML);
+    	$("#UnitaryCost").val(Number(cells[3].innerHTML.replace(",",".")));
     });
 });
     </script>
   </div>
-</form>
+    </form>
 </asp:Content>
 
 
diff --git a/web/Web.csproj b/web/Web.csproj
index 6de340db..e263cb21 100644
--- a/web/Web.csproj
+++ b/web/Web.csproj
@@ -25,6 +25,11 @@
     </AspNet>
     <AssemblyName>Yavsc</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <CustomCommands>
+      <CustomCommands>
+        <Command type="BeforeExecute" />
+      </CustomCommands>
+    </CustomCommands>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>none</DebugType>
@@ -107,6 +112,10 @@
     <Folder Include="Views\WorkFlow\" />
     <Folder Include="Views\Admin\" />
     <Folder Include="js\" />
+    <Folder Include="Theme\" />
+    <Folder Include="Theme\green\" />
+    <Folder Include="Theme\blue\" />
+    <Folder Include="Theme\dark\" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Controllers\HomeController.cs" />
@@ -145,7 +154,6 @@
     <Content Include="Views\Home\Index.aspx" />
     <Content Include="Web.config" />
     <Content Include="Global.asax" />
-    <Content Include="style.css" />
     <Content Include="Models\App.master" />
     <Content Include="Views\Account\Register.aspx" />
     <Content Include="Views\Account\ChangePassword.aspx" />
@@ -204,6 +212,19 @@
     <Content Include="js\jquery.tablesorter.min.js" />
     <Content Include="js\jquery-latest.js" />
     <Content Include="Views\FrontOffice\Write.aspx" />
+    <Content Include="Theme\style.css" />
+    <Content Include="Theme\green\asc.png" />
+    <Content Include="Theme\green\bg.png" />
+    <Content Include="Theme\green\desc.png" />
+    <Content Include="Theme\green\style.css" />
+    <Content Include="Theme\blue\asc.gif" />
+    <Content Include="Theme\blue\bg.gif" />
+    <Content Include="Theme\blue\desc.gif" />
+    <Content Include="Theme\blue\style.css" />
+    <Content Include="Theme\dark\asc.gif" />
+    <Content Include="Theme\dark\bg.gif" />
+    <Content Include="Theme\dark\desc.gif" />
+    <Content Include="Theme\dark\style.css" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <Import Project="$(MSBuildExtensionsPath)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" />
diff --git a/yavscModel/WorkFlow/Writting.cs b/yavscModel/WorkFlow/Writting.cs
index 10c38073..2d18c21d 100644
--- a/yavscModel/WorkFlow/Writting.cs
+++ b/yavscModel/WorkFlow/Writting.cs
@@ -1,13 +1,43 @@
 using System;
+using System.ComponentModel.DataAnnotations;
 
 namespace Yavsc.Model.WorkFlow
 {
+	/// <summary>
+	/// A Writting.
+	/// Une ligne d'écriture dans un devis ou une facture
+	/// </summary>
 	public class Writting
 	{
+		/// <summary>
+		/// Gets or sets the identifier.
+		/// </summary>
+		/// <value>The identifier.</value>
 		public long Id { get; set; }
+		/// <summary>
+		/// Gets or sets the unitary cost, per unit, or per hour ...
+ 		/// Who knows?
+		/// </summary>
+		/// <value>The unitary cost.</value>
+		[Required()]
 		public decimal UnitaryCost { get; set; }
+		/// <summary>
+		/// Gets or sets the count.
+		/// </summary>
+		/// <value>The count.</value>
+		[Required()]
 		public int Count { get; set; }
+		/// <summary>
+		/// Gets or sets the product reference.
+		/// </summary>
+		/// <value>The product reference.</value>
+		[Required()]
 		public string ProductReference { get; set; }
+		/// <summary>
+		/// Gets or sets the description.
+		/// </summary>
+		/// <value>The description.</value>
+		[Required()]
 		public string Description { get; set; } 
 	}
 }