You are guessing without having enough data. All you need is to make the same request the editor does. Look at the log line and submit the same request, including the search arguments, through the browser, so you can see what's coming back. Then you can deal with it.
As for your <input> question, you are trying to retrieve something from the server, not to place onto the server. I don't see how this type of input would help you.
Re: Integration with a Cherrypy Application : XML Request error
As for your <input> question, you are trying to retrieve something from the server, not to place onto the server. I don't see how this type of input would help you.
Andre