window.onerror = null

function rnd (choice) {
  return Math.floor ((Math.random()*choice + ((new Date()).getTime()/10)) % choice);
}

function email (usr, host) {
  document.write ('<a href="mailto:'+usr+'@'+host+'">'+usr+'@'+host+'</a>');
}

function email (usr, host, style) {
  document.write ('<a href="mailto:'+usr+'@'+host+'" class='+style+'>'+usr+'@'+host+'</a>');
}