Getting issue when uploading image from ckeditor

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ASP.NET

can anybody please help me ,i am getting issue when uploading image from ckeditor
hit is not going to .ashx

my code is

.aspx

<CKEditor:CKEditorControl ID="txtDescription" runat="server" Height="200" Width="600" FilebrowserImageUploadUrl="/BNHabitatBuilder/Upload.ashx">


.ashx

public class Upload : IHttpHandler
{

    public void ProcessRequest(HttpContext context)
    {
        HttpPostedFile uploads = context.Request.Files["upload"];
        string CKEditorFuncNum = context.Request["CKEditorFuncNum"];
        string file = System.IO.Path.GetFileName(uploads.FileName);
        uploads.SaveAs(context.Server.MapPath(".") + "\\images\\"       + file);
        string url = "/BNHabitatBuilder/images/" + file;
        context.Response.End();
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }

}