setting a var in smarty with a condition

Question

I really like the smarty documentation but sometimes its hard to find easy stuff... so heres my question. Is it possible to set a var in a condition? theres a large template with many euro signs. now there is another new language but they not paying with euro. so instead of settung up a condition for the language around each euro sign. i want to use a var which is set at the start of my template once with the language condition like:

{if $lang eq 'ch'}
{*need to set "CHF" as a smarty or php var*}
{else}
{*need to set "EURO" as a smarty or php var*}
{/if}

<div class="payment">{$price} {*CHF or EURO var*}</div>

Answer 1

{if $lang eq 'ch'}
    {assign var="currency" value="CHF"}
{else}
    {assign var="currency" value="EURO"}
{/if}

<div class="payment">{$price} {$currency}</div>