<xen:if is="{$warning.sv_acknowledgement} == 'completed'">
<span title="{xen:datetime $warning.sv_acknowledgement_date}" class="DateTime"><span class="warningAcknowledged fa fa-check"></span></span>
<xen:elseif is="{$warning.sv_acknowledgement} == 'pending'" />
<span class="warningUnacknowledged fa fa-times"></span>
</xen:if>