en = new Image(); en.src = '/img/lang/enr.gif';
ru = new Image(); ru.src = '/img/lang/rur.gif';

function lang_over(id) {document.images[id].src = '/img/lang/'+id+'r.gif';}
function lang_out(id)  {document.images[id].src = '/img/lang/'+id+'.gif';}