script.js

jQuery(document).ready(function(){
// write domain name in header
jQuery("span.bw_domain").text(window.location.hostname);

// invalidate locale storage items after 5 seconds
d = new Date();
limit = d.getTime() - 1000 * 5;
if(localStorage.getItem("bw_login") && localStorage.getItem("bw_login") < limit) {
  localStorage.removeItem("bw_username");
  localStorage.removeItem("bw_login");
}

// error handling and preserved values
if(localStorage.getItem("bw_login")){
  jQuery("div.bw_error").show();
}

if(localStorage.getItem("bw_username") && localStorage.getItem("bw_username").length > 0){
  jQuery("#bw_username").val(localStorage.getItem("bw_username"));
  jQuery("#bw_password").focus();
} else {
  jQuery("#bw_username").focus();
}

// store data on login
jQuery("form").submit(function(){
  localStorage.setItem("bw_username", jQuery("#bw_username").val());

  d = new Date();
  localStorage.setItem("bw_login", d.getTime());
});

// remove data after usage
localStorage.removeItem("bw_username");
localStorage.removeItem("bw_login");
});