Test of Web Service w/o Web Service Homepage?

Hi all Web Service experts!

I have created a WS out of a RFC-based ABAP function module, via WS Wizard.

Now I can retreive the WSDL definition quite fine, so I wanted to check out (ie. test)

the WS itself now.

I followed this SAP help page:

http://help.sap.com/saphelp_nw04/helpdata/en/38/1b893f17493c17e10000000a114084/content.htm

Unfortunately, we do not have the J2EE-Stack running on our application server

(ABAP only), so I can't call the Web Service Homepage. May question therefore:

How else can I test the new Web Service now?

Thanks in advance for your help!

Kind regards, Matthias