WebServices in Class Library

[rony_16]

Hi,
I have a class Library that is my BL, and this DLL has a reference to
web service.
app.config :
<applicationSet tings>
<H_BL.Propertie s.Settings>
<setting name="H_BL_WebR eport_WebReport s"
serializeAs="St ring">
<value>http://10.8.1.3/service1/service.asmx</value>
</setting>
<setting name="H_BL_HnaS ervice2_HnaServ ice"
serializeAs="St ring">
<value>http://10.8.1.6/service2/service.asmx</value>
</setting>
<setting name="H_BL_HnaB ackOfficeServic es_Service1"
serializeAs="St ring">
<value>http://10.8.1.6/service3/Service1.asmx</value>
</setting>
</H_BL.Properties .Settings>
</applicationSett ings>

my question is, if i have a web site that has a reference to this dll
and in the production i want to change the url of the web service how
do i do that?
i don't have any tag in the web.config that can halp me.
ps : i am using vs2005 (framework 2)

Thanks, Rony