I've made a SVG with javascript for navigation as shown in http://www.carto.net/svg/navigationTools/
My map SVG is made with 2 externals references and one of these references must be refreshed periodically.
(use xlink:href="France.svg#france") and (use xlink:href="routs.svg#routes" id="carout" )
Once I refresh the page, my zoom is back to 1:1. Instead I would like my page to refresh the reference and reload the page with the active zoom selected.