Question Calling web service without adding web reference

[abhinay86]

Hi,

I am new in webservice. I have an aspx page which shud call web service depending on the link provided to me.

For example:
If the link given is
http://sharepoint/sites/Abhi
then web service is
http://sharepoint/sites/Abhi/_vti_bin/lists.asmx

if the link is
http://dl26505l/sites/RSP
then web service is
http://dl26505l/sites/RSP/_vti_bin/lists.asmx

So the webService changes with the link (all these web services have same method "GetListItems" but return different xml.)

Can I call webservice without giving any web reference? If yes how ? Please explain with example if possible.

Thank you
Abhi