How to remove a link from the current page?

Question

Smarty

I have a link to the page displayed in the script like this:

<a{{if $smarty.server.SCRIPT_NAME=='/index.php'}} class="active"{{/if}} href="http://site.com/">Главная страница</a>

And I need that, if I am on the index.php page itself, the inscription Home page is inactive .... How can I do this?