Magento has a builtin functionality to let you specify WHERE you should be redirected after the login.
Please read this link
You should set the Admin->System->Configuration->Customer Configuration->Login Options->Redirect Customer to Account Dashboard to NO
and then in the login form add an hidden input field named "referer_url"
...
<?php echo $this->getChildHtml('customer.form.login.extra')?>
<form action="<?php echo $this->getPostActionUrl() ?>" method="post" id="login-form">
**<input type="hidden" name="referer_url" value="employee-logged-in.html"/>**
<div class="col2-set">
...
the code above was from default template/customer/login.phtml
you shoudl be able to modifiy it even if you are not a "programmer".