Added toggle for admin menu. Some work needed to make generic.

--HG--
branch : dev

src/Orchard.Web/Themes/TheAdmin/Scripts/admin.js

@@ -0,0 +1,6 @@
+$(document).ready(function(){
+$("#navigation li span").click(function() {
+$(this).next().next().slideToggle(600);
+return false;
+ });
+}); 

src/Orchard.Web/Themes/TheAdmin/Styles/site.css

@@ -239,7 +239,7 @@ form.link button:hover {
     width:0;
 }
 #navigation li {
-	margin:7px 0 20px 0;
+	margin:7px 0 20px 4px;
 }
 #navigation ul li {
     border:0;
@@ -270,6 +270,19 @@ form.link button:hover {
 	text-decoration:underline;
 }
 
+/* todo: make generic so all toggles can use this and clean up jQuery */
+.menuGlyph {
+display:block;
+height:11px;
+width:11px;
+margin:0 0 -22px -8px;
+background:url("images/menuOpen.gif") no-repeat center top;
+}
+.menuGlyph:hover {
+background:url("images/menuOpenHover.gif") no-repeat center top;
+cursor:pointer;
+}
+
 /* Content
 ----------------------------------------------------------*/
 #main h1 {

src/Orchard.Web/Themes/TheAdmin/Views/Layout.ascx

@@ -8,6 +8,7 @@ Model.Zones.AddRenderPartial("header", "Header", Model);
 Model.Zones.AddRenderPartial("header:after", "User", Model); // todo: (heskew) should be a user display or widget
 Model.Zones.AddRenderPartial("menu", "Menu", Model);
 %>
+<script src="<%: Url.Content("~/Themes/TheAdmin/Scripts/admin.js") %>" type="text/javascript"></script>
 <div id="header" role="banner"><% Html.Zone("header"); %></div>
 <div id="content">
     <div id="navshortcut"><a href="#menu"><%: T("Skip to navigation") %></a></div>

src/Orchard.Web/Themes/TheAdmin/Views/Menu.ascx

@@ -15,7 +15,7 @@
                   classification += "last ";
               
               %>
-          <li<%=!string.IsNullOrEmpty(classification) ? string.Format(" class=\"{0}\"", classification.TrimEnd()) : "" %>><h3><%=sectionHeaderMarkup %></h3><ul><%foreach (var menuItem in menuSection.Items) { %>
+          <li<%=!string.IsNullOrEmpty(classification) ? string.Format(" class=\"{0}\"", classification.TrimEnd()) : "" %>><span class="menuGlyph"></span><h3><%=sectionHeaderMarkup %></h3><ul class="menuItems"><%foreach (var menuItem in menuSection.Items) { %>
           <li><%: Html.ActionLink(menuItem.Text, (string)menuItem.RouteValues["action"], menuItem.RouteValues)%></li>
           <%} %></ul></li>
     <%