ImpressCMS/impresscms

<div style="text-align: center;">
<form action="index.php" method="post">
<div>
    <select name="theme_select" onchange="submit();" size="3">
    <{foreach item=theme from=$block.theme_select}>
    <option value="<{$theme.folder}>"> <{if $theme.option>0}><img src="<{$theme.image}>"><br/><{/if}><{$theme.name}></option>
    <{/foreach}>
    </select>
</div>
</form>
</div>