// JavaScript Document

var ppart1="/f/" /* Part that need to change */
var ppart2="/e/" /* Part that need to change */
var address1 =  location.href;

function langbtnEN()	{

var naddress = address1.replace(ppart1,ppart2);
document.write("<a href=" + naddress + ">");

}

function langbtnFR()	{

var naddress = address1.replace(ppart2,ppart1);
document.write("<a href=" + naddress + ">");

}