private void doWebService(String webservice) throws PageException {
if(username!=null) {
if(password==null)password = "";
}
ProxyData pd=StringUtil.isEmpty(proxy.getServer())?null:proxy;
RPCClient ws = username!=null?new RPCClient(webservice,username,password,pd):new RPCClient(webservice,pd);
Object rtn = ws.callWithNamedValues(pageContext,method,data);
// return
if(!StringUtil.isEmpty(returnvariable)) pageContext.setVariable(returnvariable,rtn);
//throw new ApplicationException("type webservice is not yet implemented for tag invoke");