Google API Web service + siebel

[CRMRavi]

HI All,

We are trying to do a webservice in siebel(Outbound
Webservice).we are provided with Google API Webservice.The Scenerio is
while giving any keyword and give click search button the url of the
result shuld be displayed in account form applets Url field.

We have imported the wsdl file and everything is almost over
regarding the Business Service and Integration objects have been
created .Now only thing left back is to code in the button to invoke
this web service.which we are not able to.we did enough research in
google and supportweb. If u have any script in ur BS please send it as
i would get more idea on how to write it in the BS.Please help me..