Using a Javascript alert message in ASP ....

ASP scripts often have logic where you wish to test for some condition, such as if a record set is empty, and then display a message indicating that no records exists. The message could be displayed on an html page, but a neater method is to create a Javascript pop up alert and then use history.go to take the display back.

<%
if objRs.RecordCount = 0 then
      %>
      <script language="javascript">
      <!--
      window.alert ("display message");
      window.history.go(-1);
      //-->
      </script>
      <%
      Response.End
else
      ...do something else...
end if
%>