Invoice - Gateway based on currency

[codemaster2008]

I'm trying to change the invoice template to show different payment gateways based on the currency on client's profile.

 

I tried the code bellow but one the currency is one (USD) it will always bring "Credit Card" selected with the PayPal button bellow it.

 

{if $allowchangegateway}
   <form method="post" action="{$smarty.server.PHP_SELF}?id={$invoiceid}">
       <select name="gateway" onchange="submit()"> 
           { if $clientsdetails.currency eq 1 }         
               <option value="linkpoint" {if $paymentmethod eq "linkpoint"} selected="selected" {/if}>Credit Card</option>
               <option value="paypal" {if $paymentmethod eq "paypal"} selected="selected" {/if}>PayPal</option>            
           { elseif $clientsdetails.currency eq 2 } 
               <option value="custom_gateway" {if $paymentmethod eq "f2b"} selected="selected" {/if}>My Custom Gateway</option>
           {/if}
       </select> 
       <br /><br />
   </form>
{else}
{$paymentmethod}<br />
{/if}