restxq with html form get

Readers, A new file is trying to be created, with a html form using the element 'select'. The objective is to select from a menu and return a new html page after processing of the xquery function. From the web page about http requests (http://docs.basex.org/wiki/RESTXQ#HTTP_Methods), where is the content type to be written in the xqm file? (:~ : This module contains some basic examples for RESTXQ annotations : @author BaseX Team :) module namespace page = 'http://basex.org/modules/web-page'; (:~ : This function generates the welcome page. : @return HTML page :) declare %rest:path("") %output:method("xhtml") %output:omit-xml-declaration("no") %output:doctype-public("-//W3C//DTD XHTML Basic 1.1//EN") %output:doctype-system("http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd") function page:start() as element(Q{http://www.w3.org/1999/xhtml}html) { <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>BaseX HTTP Services</title> <link rel="stylesheet" type="text/css" href="static/style.css"/> </head> <body> <h3>Example 2</h3> <p>The next example presents how form data is processed via RESTXQ and the POST method:</p> <form method='get' name='databasequeryform'

				<p>
					<select
						name='booktitle'

						<option>
							Everyday Italian
						</option>
						<option>
							Harry Potter
						</option>
					</select>
					<input
						type="submit"
						value='send'
						/>
				</p>
			</form>
	</body>
</html>
};
declare
%rest:path("/form")
%rest:GET
function page:post()
	{
		let $x := fn:doc("xmldatabasefile.xml")/bookstore/book/title[contains(text(),'Everyday
Italian')]/parent::*
		return $x
	};
declare
%rest:path("/put")
%rest:PUT("{$body}")
function page:put($body)
	{
		 || $body
	};

Extract of xml file:

<?xml version="1.0" encoding="utf-8"?>
<!-- Edited by XMLSpy®, taken from http://www.w3schools.com-->
<?xml-stylesheet type='text/xsl" href="xstylesheetexample.xslt" ?>
<bookstore>
	<book
		category="COOKING">
		<title
			lang="en"

			Everyday Italian
		</title>
		<author>Giada De Laurentiis</author>
		<year>2005</year>
		<price>30.00</price>
	</book>
...