I have two buttons add and save on my aspx page

as and when i click on save button ,i want to load user control on form
it works fine but when i click on add button then that previously
loadded user contol goes away

i dont kow why this happnes ...

if anybody have any idea abt it then plz help me

code is

protected void btnProfessionalAdd_Click(object sender,
ImageClickEventArgs e)
   {
       txtProject.ReadOnly = false;
       txtLocation.ReadOnly = false;
       txtCompany.ReadOnly = false;
       txtEnvironment.ReadOnly = false;
       txtDescription.ReadOnly = false;
       txtDuration.ReadOnly = false;
       //LoadNewControl();

   }

   protected void btnProfessionalSave_Click(object sender,
ImageClickEventArgs e)
   {
       //DataSet DS;
       SqlParameter ParamCompany=new
SqlParameter("@Company",SqlDbType.VarChar,50);
       ParamCompany.Value=txtCompany.Text;
       SqlParameter ParamLocation=new
SqlParameter("@Location",SqlDbType.VarChar,50);
       ParamLocation.Value=txtLocation.Text;
       SqlParameter ParamPeriod=new
SqlParameter("@Period",SqlDbType.VarChar,20);
       ParamPeriod.Value=txtDuration.Text;
       SqlParameter ParamProject=new
SqlParameter("@Project",SqlDbType.VarChar,50);
       ParamProject.Value=txtProject.Text;
       SqlParameter ParamDesc=new
SqlParameter("@ProjectDescription",SqlDbType.VarChar,5000);
       ParamDesc.Value=txtDescription.Text;
       SqlParameter ParamTech=new
SqlParameter("@Technology",SqlDbType.VarChar,1000);
       ParamTech.Value=txtEnvironment.Text;
       SqlParameter ParamResumeID=new
SqlParameter("@ResumeId",SqlDbType.VarChar,50);
       ParamResumeID.Value = "ritesh_solanki@yahoo.com";
       //Session["ERResumeID"].ToString();

SqlHelper.ExecuteNonQuery(CommonClass.GetConnectionString(),CommandType.StoredProcedure,"spInsertEmployeeExperience",ParamCompany,ParamLocation,ParamPeriod,ParamProject,ParamDesc,ParamTech,ParamResumeID);

       ClearFields();
       LoadNewControl();

   }
   protected void ClearFields()
   {
       txtProject.Text = "";
       txtLocation.Text= "";
       txtCompany.Text = "";
       txtEnvironment.Text = "";
       txtDescription.Text = "";
       txtDuration.Text = "";
       txtProject.ReadOnly = true;
       txtLocation.ReadOnly = true;
       txtCompany.ReadOnly = true;
       txtEnvironment.ReadOnly = true;
       txtDescription.ReadOnly = true;
       txtDuration.ReadOnly = true;
   }
   protected void LoadNewControl()
   {
       Control myCnt;
       int cnt=0;
       int i;
       cnt++;
       if (hiddnCnt.Value == "")
       {
           cnt = cnt;
       }
       else
       {
            cnt = Convert.ToInt32(hiddnCnt.Value) +1;
           //cnt=cnt+1;
       }
       //cntName As New Control()
       //cntName.ID = "PlaceHolder" & cnt
       //form1.Controls.Add(cntName)
       for(i=0;i<=cnt-1;i++)
       {
           myCnt = LoadControl("Project.ascx");
           myCnt.ID = "Control" +i;
//            Panel1.Controls.Add(myCnt);
      form1.Controls.Add(myCnt);
     
       }
       hiddnCnt.Value = cnt.ToString();

   }