// Get the language of the current page ; LG :language symbol (Gb, Fr...)
var adress=window.location.href;
var pag=adress.substring(adress.lastIndexOf('/'),adress.length);
var idx=adress.indexOf('/',7)+1;
var lang=adress.substring(idx,idx+2); // Normal case: http://.../LG/page.html
if (pag=="/index.html")	 {lang="Gb"; var isindex="yes";}; // Special case: english main page
if (pag=="/indexFr.html"){lang="Fr"; var isindex="yes";}; // Special case: french main page
if (pag=="/")		 {lang="Gb"; var isindex="yes";}; // Special case: main site page
lnk=adress.substring(idx+2,adress.length);
if (lang=="Gb") {
	var titl="Version française";
	var flgn="\"french flag\"";
        var flag="\"/images/Frflag.jpg\"";
	if (isindex=="yes") {lnk="\"/indexFr.html\"";}
	else		    {lnk="\"/Fr"+lnk+"\"";}
}
if (lang=="Fr") {
	var titl="English version";
	var flgn="\"english flag\"";
        var flag="\"/images/Gbflag.jpg\"";
	if (isindex=="yes") {lnk="\"/index.html\"";}
	else		    {lnk="\"/Gb"+lnk+"\"";}
}
document.write("<p align=\"center\"><a href="+lnk+"><img height=\"25px\" hspace=\"45px\" src="+flag+" alt="+flgn+" /></a><br />"+titl+"</p>")