mvc pop up window

I have an mvc project with a jqgrid that has an editting column, my problem is when i Try to link the edit in each row to a pop up window, when I add the code below a window pop up opens but I recieve a 402 unothorized error, here is my code in the controller

var jsonData = new
        {
            total = totalPages,
            page = page,
      开发者_如何学编程      records = totalRecords,

            rows = (
              from item in items

              select new
              {
                  id = item.Id,
                  cell = new string[] { 
                    "<A HREF=javascript: void(0)  onclick=window.open

                 ('/Views/viewname/Edit/'+"item.code+",'Edit','width=700,height=800'); >Edit</A>",

                            column2,
                           column3,
                           etc ...}
              }).ToArray()
        };

but if I just link the edit to a regular page through this code

var jsonData = new
        {
            total = totalPages,
            page = page,
            records = totalRecords,

            rows = (
              from item in items


              select new
              {
                  id = item.Id,
                  cell = new string[] { 
                    "<a href=viewfolder/Edit/"+item.Code +">Edit</a> "  ,
                            column2,
                           column3,
                           etc ...}
              }).ToArray()

I do not have any problems, I have a edit page which works fine if it is not a pop up window, has anybody faced this problem, or can anyone direct me to an example that is similar.Thnaks in advance

Have you tried with quotes around your href and onclick attribute values?