function changeIdioma(idioma){
	var url = window.location.toString();
	if(url.indexOf("changeIdioma")!=-1){
		if(url.indexOf("&")!=-1){
			url = url.substring(0, url.indexOf("&"));
		}else{
			url = url.substring(0, url.indexOf("?"));
		}
	}
	if(url.indexOf("?")!=-1) url+= "&"
	else url += "?";
	
	url += "changeIdioma="+idioma;
	window.location = url;
}