how to retrieve a value which is returned by a webservice method by using the webservice behavior

Hello Mate,

                    I am using the webservice behavior to call a webservice method through internet. but i have a problem in getting a value which is returned from a webservice method. the jscript shown below is not working. Could u please help me in this ?

This is my web method:
<WebMethod(True)> _
Public Function add(ByVal a As Integer, ByVal b Go to the complete details ...