function switch_f_to_a () {
    var currhref = document.location.href;
    var findlang = /(.*)(\/f\/)(.*)/;
    var currpath = findlang.exec (currhref);
    var newpath = ("http://www.consyst-sql.com/a/" + currpath[3]);
    document.write ("English".link(newpath));
}

function switch_a_to_f () {
    var currhref = document.location.href;
    var findlang = /(.*)(\/a\/)(.*)/;
    var currpath = findlang.exec (currhref);
    var newpath = ("http://www.consyst.ca/f/" + currpath[3]);
    document.write ("Français".link(newpath));
}