(let ((newresult (cons (string-append (s:any->string key) "=" (s:any->string val))
			       result)))
	  (if (< (length tail) 1) ;; true if done
	      (string-intersperse newresult "&")
	      (loop (car tail)(cadr tail)(cddr tail) newresult))))))

(define (session:link-to self page params)
  (let* ((https-host   (get-environment-variable "HTTPS_HOST"))
	 (server       (or https-host ;; Assuming HTTPS_HOST is only set if available
			   (get-environment-variable "HTTP_HOST")
			   (get-environment-variable "SERVER_NAME")))
         (force-script  (sdat-get-script self))
	 (script        (or force-script
			    (let ((script-name (string-split (get-environment-variable "SCRIPT_NAME") "/")))
			      (if (> (length script-name) 1)
				  (string-append (car script-name) "/" (cadr script-name))
				  (get-environment-variable "SCRIPT_NAME"))))) ;; build script name from first two elements. This is a hangover from before I used ? in the URL.)
         (session-key   (sdat-get-session-key self))
	 (paramstr      (session:param->string params)))
    ;; (session:log self "server=" server " script=" script " page=" page)
    (string-append (if https-host
		       "https://"
		       "http://")
		   server "/" script "/" page "?" paramstr))) ;; "/sn=" session-key)))

(define (session:cgi-out self)
  (let* ((content  (list (sdat-get-content-type self))) ;; '("Content-type: text/html; charset=iso-8859-1\n\n"))
	 (header   (let ((cookie (sdat-get-session-cookie self)))
		     (if cookie
			 (cons (string-append "Set-Cookie: " (car cookie))
			       content)