fixed saving of positions of the tiles again

app/assets/javascripts/orbitdesktop.js

@@ -657,6 +657,7 @@ var orbitDesktop = function(dom){
         .gridster({
           widget_margins: [6, 6],
           widget_base_dimensions: [120, 120],
+          serialize_params: function($w, wgd) { return { col: wgd.col, row: wgd.row, id: $w.data("id") } },
           draggable : { 
             start: function(event, ui){
               dragged.addClass("noClick");
@@ -671,6 +672,8 @@ var orbitDesktop = function(dom){
                   }
                 });
               }
+               var newpos = o.gridvar.serialize();
+               $.post("/desktop/newpositions",{"newpositions":newpos});
             }
           }
         })