function DoTraceOrder()
  {
        var email = $("txtEmail");
        var orderid = $("txtOrderID");
        if (!IsEmail(email.value))
        {
            email.focus();
            alert("Invalid email!");
            return false;
        }
        if (isNaN(orderid.value))
        {
            orderid.focus();
            alert("Invalid order ID!");
            return false;
        }
        window.open("TrackOrder.aspx?email=" + email.value + "&OrderID=" + orderid.value);
    
    
  }