problems with setting soapAction to method name

[Abhijat Thakur]

I am publishing the services using the wsddd file which looks something like this.

<deployment xmlns="http://xml.apache.org/axis/wsdd/"; 
    xmlns:java="http://xml.apache.org/axis/wsdd/providers/java";>
  <service name="rsApp" provider="java:RPC">
    <parameter name="scope" value="Session"/>
    <parameter name="soapAction" value="operation"/>
    <parameter name="className" value="com.bdna.pl.RSApp"/>
    <parameter name="allowedMethods" value="*"/>
  </service>
  <service name="rsAttributeSet" provider="java:RPC">
    <parameter name="scope" value="Session"/>
    <parameter name="soapAction" value="operation"/>
    <parameter name="className" value="com.bdna.pl.RSAttributeSet"/>
    <parameter name="allowedMethods" value="*"/>
  </service>
 <service name="rsDBUpdate" provider="java:RPC">
    <parameter name="scope" value="Session"/>
    <parameter name="soapAction" value="operation"/>
    <parameter name="className" value="com.bdna.pl.RsDBUpdate"/>
    <parameter name="allowedMethods" value="*"/>
  </service>
</deployment >

When my services are published the soapAction field is set to "". My SOAP client is 
java script and it is complaining about SOAPAction being empty. How can i set the 
value of soapAction attribute to method name.

thanks

abhijat