How can I detect homepage.tpl in WHMCS in Smarty?

I currently edit one template of WHMCS, it's written by Smarty.

Can I use something simple like

{if $is_homepage}
show something
{/if}

Which **homepage** is loaded from homepage.tpl, mean index page. Because I want to load some code, just in homepage only.
Thanks.

quite hacky but you might try something like this:

{if ($smarty.server.SCRIPT_NAME eq "/index.php")}

{/if}

Use this instead if you desire optimized code.

{if $filename eq "index"}
your code here
{/if}

you don't have to include the filename extension like **.tpl** (just in case you were wondering)