function MM_openBrWindow(theURL,winName,features) { //v2.0
     window.open(theURL,winName,features);
  }

  function tbl_hover(id) {
    document.getElementById('id'+id).className="tbl_over";
  }

  function hidden_fast() {
    document.getElementById('fast_prod').style.visibility="hidden";
  }

  function show_fast() {
    document.getElementById('fast_prod').style.visibility="visible";
  }

  function win_open(url,win_name,features) {
    window.open(url,win_name,features,'top=452', 'left=1003');
  }

  var lang = 'ru';
  function changeLang(l) {
    document.getElementById('main_'+lang).style.display="none";
    document.getElementById('main_'+l).style.display="block";
    lang = l;
  }