Simple jQuery plugin to fill in mailto links.

email_switcher.js

$(document).ready(function(){
  $("a[href^=mailto]").emailSwitcher();
});

// Switches emails in the form <a href="mailto:">bill at ben dot com</a> 
// to <a href="mailto:bill@ben.com">bill@ben.com</a>.
$.fn.emailSwitcher = function () {
  var regex = /^([^\s]+)\s+at\s+([^\s]+)\s+dot\s+([^\s]+)$/gi;
  this.each(function () {
    var $this = $(this), 
        email;
    
    if ($this.text().match(regex)) {
      email = $(this).text().replace(regex, '$1@$2.$3');
      $this.attr('href', 'mailto:' + email).text(email);
    }
  }); 
};