random ad

<script>
var value1 = 'top_1st';
var value2 = 'top_2nd';
var value3 = 'top_3rd';
var chosenValue = Math.random() < 0.5 ? value1 : value2 : value3;
var chosenDiv = document.getElementById(chosenValue);
chosenDiv.style.display = "block";
</script>



<div id="inline" class="various2">
      <div style="display: none;" id="top_1st">
         <a href="http://scicom.mv" onClick="ga('send', 'event', 'TopBannerSciCom', 'click','SciComTopTuition',1.00, {'nonInteraction': 1});" ><img width="100%" style="border: 0px" src="http://ads.esfiya.com/wp-content/uploads/2015/08/tuition_top.jpg" alt="" /></a>
<img width=0 height=0 src="data:image/gif;base64,R0lGODlhAQABAIAAAP///////yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" onload="ga('send', 'event', 'TopBannerSciCom', 'impression','SciComTopTuition',2.00, {'nonInteraction': 1});"/>
       </div>
    <div style="display: none;" id="top_2nd">
           <a href="http://scicom.mv" onClick="ga('send', 'event', 'TopBannerSciCom', 'click','SciComTopEng',1.00, {'nonInteraction': 1});" ><img width="100%" style="border: 0px" src="http://ads.esfiya.com/wp-content/uploads/2015/08/eng_top.jpg" alt="" /></a>
<img width=0 height=0 src="data:image/gif;base64,R0lGODlhAQABAIAAAP///////yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" onload="ga('send', 'event', 'TopBannerSciCom', 'impression','SciComTopEng',2.00, {'nonInteraction': 1});"/>
       </div>

<div style="display: none;" id="top_3rd">
           <a href="http://scicom.mv" onClick="ga('send', 'event', 'TopBannerAdHere', 'click','TopAdHere',1.00, {'nonInteraction': 1});" ><img width="100%" style="border: 0px" src="http://ads.esfiya.com/wp-content/uploads/2015/04/ad-here-red700x140.jpg" alt="" /></a>
<img width=0 height=0 src="data:image/gif;base64,R0lGODlhAQABAIAAAP///////yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" onload="ga('send', 'event', 'TopBannerAdHere', 'impression','TopAdHere',2.00, {'nonInteraction': 1});"/>
       </div>
</div>