deivedm

I think the author is on vacation.
But for anyone who needs a solution here was mine:

$('.tabs_login li a:nth-child(1)').click(function() {
   $('#login').css("display", "block");
   $('#register').css("display", "none");
   $('#forgot_password').css("display", "none");
});
$('#login-register-password > ul > li:nth-child(2) > a').click(function() {
   $('#login').css("display", "none");
   $('#register').css("display", "block");
   $('#forgot_password').css("display", "none");
});
$('#login-register-password > ul > li:nth-child(3) > a').click(function() {
   $('#login').css("display", "none");
   $('#register').css("display", "none");
   $('#forgot_password').css("display", "block");
});