function geo_decode(email_tag) {
 if (!email_tag) { return; };
 email = email_tag.innerHTML;
 email = email.gsub(/ at /,'@');
 email_tag.replace("<a class='email' href='mailto:"+email+"'>"+email+"</a>"); 
}

window.onload = function() {
	var emails = $$('span.email');
	for (var index = 0; index < emails.length; ++index) {
	  var item = emails[index];
	  geo_decode(item);
	};
}