<input type="hidden" name="theme" value="$content" />
<input type="submit" name="ok" class="admin_submit" value="{--ADMIN_INSTALL_THEME--}" />
</form>
<input type="hidden" name="theme" value="$content" />
<input type="submit" name="ok" class="admin_submit" value="{--ADMIN_INSTALL_THEME--}" />
</form>