// <script type="text/javascript" language="JavaScript" src="/prontus_wow/js-local/dtime_server/now.js"></script>

function multivista_switch(lang) {

  var page = location.href;
  var lng;

  if(lang=='esp') lng='sp';
  if(lang=='eng') lng='en';
  if( page.lastIndexOf('mc_prontus_buscar.cgi')!=-1 ) {
    new_page = page.slice(0,page.lastIndexOf('?')) + '?lng=' + lng;
    location.href=new_page;
    return;
  } else if( page.lastIndexOf('mc_prontus_lista.cgi')!=-1 ) {
    new_page = page.slice(0,page.lastIndexOf('mc_prontus_lista.cgi')) + 'mc_prontus_buscar.cgi?lng=' + lng;
    location.href=new_page;
    return;
  };

  if(lang=='esp')
    document.cookie = "idioma=esp; path=/";
  else if(lang=='eng')
    document.cookie = "idioma=eng; path=/";
  else
    document.cookie = "idioma=; path=/";

  location.reload();
};