function idioma() {
if (navigator.userAgent.indexOf("Opera")!=-1) (language=navigator.language)
else { if (navigator.appName == "Netscape") (language=navigator.language)
else language=navigator.browserLanguage };
if(language){language=language.substring(0,2);}
else {language="zz";}
switch (language) {
case "es" : break;
case "ca" : break;
case "gl" : break;
case "eu" : break;
default : lang(); break;
} }

function lang() {
document.getElementById('menushop').style.display = (document.getElementById('menushop').style.display == 'none') ? 'block' : 'none';
}