function changeLanguage(lang){
	var sep="&";
	var url=window.location.href;

	// Account for SideWiki javascript, e.g. http://www.trafigura.com/#T4RDJLmrbpOV
	url=url.substring(0, url.length - 13);

	if(url.indexOf("lang=")>-1){
		url=url.substring(0, url.indexOf("lang=")-1);
	}
	if(url.substring(url.length, url.length-5)==".aspx"){sep="?";}
	if(url.substring(url.length, url.length-1)=="/"){sep="default.aspx?";}
	url=url+sep+"lang="+lang;
	window.location.href=url;
}