energylink/panels/timepicker/refreshctrl.html

<form name="refreshPopover" class='form-inline input-append' style="margin:0px">
    <label><small>Interval (seconds)</small></label><br>
    <input type="number" class="input-mini" ng-model="refresh_interval">
    <button type="button" class="btn" ng-click="panel.refresh.interval=refresh_interval;dismiss()"><i class="icon-ok"></i></button>
</form>