Ok, I figured it out. Here it is in case anyone else needs it:
Code:
{if $products[product].product_options ne '' and $products[product].productid ne "123"}
{if $config.UA.platform eq 'MacPPC' && $config.UA.browser eq 'MSIE'}
{include file="buttons/edit_product_options.tpl" href="javascript:window.open('`$catalogs.customer`/popup_poptions.php?target=cart&id=`$products[product].cartid`','POptions','width=550,height=350,toolbar=no,status=no,scrollbars=yes,resizable=no,menubar=no,location=no,direction=no');" js_to_href="Y"}
{else}
{include file="buttons/edit_product_options.tpl" href="javascript:window.open('`$catalogs.customer`/popup_poptions.php?target=cart&id=`$products[product].cartid`','POptions','width=550,height=350,toolbar=no,status=no,scrollbars=yes,resizable=no,menubar=no,location=no,direction=no');"}
{/if}
{/if}