function movr(k) {
 if (document.images) 
  eval('document.img'+k+'.src=img'+k+'_on.src');
}

function mout(k) {
 if (document.images) 
  eval('document.img'+k+'.src=img'+k+'_off.src');
}

function changeLang() {
 var loc = location.href;
 window.location =loc.replace("/en/","/tc/");
}

function changeLangTC() {
 var loc = location.href;
 window.location =loc.replace("/tc/","/en/");
}