// JavaScript Document

function changelang(lang){
 var currentpage=location.href;
 var index=currentpage.indexOf("?lang=")+6;
 var currentlang=currentpage.substring(index,index+2);
 if(currentlang!=lang.toLowerCase()){
 	var rechargepage=currentpage.replace("?lang="+currentlang,"?lang="+lang.toLowerCase());
 	location.href=rechargepage;
 }
}

function checklang(){
 var currentpage=location.href;
 if(currentpage.indexOf("?lang=")==-1){
 // alert("ln:"+window.navigator.language)
 if(window.navigator.language=='it'){
 	location.href=currentpage+"?lang=it";
 }else{
 	location.href=currentpage+"?lang=en";
 }
 }
}

function getLang(){
 var currentpage=location.href;
 var index=currentpage.indexOf("?lang=")+6;
 var currentlang=currentpage.substring(index,index+2);
 return currentlang.toLowerCase();
}