Nevermind,
I fixed the problem by changing:
Code:
<input type="radio" name="send_via" value="E" onclick="javascript: switchPreview();"{if $giftcert.send_via ne "P"} checked="checked"{/if} />
into:
Code:
<input type="radio" name="send_via" value="E" onclick="javascript: switchPreview();"{if $giftcert.send_via eq "P"} checked="checked"{/if} />
I changed
eq at the Mail option in
ne ofcourse. In that way, the Mail option is the default option now.
Kind regards.