fixed issue with closeall video

index.html

@@ -30,7 +30,7 @@
    </span>
 
       <span id="how">
-    <a href="#" >how to use</a> |
+    <a href="#" >how to use</a>
   </span>
 
   </div>
@@ -298,6 +298,10 @@ includeHTML();
        $("#showbio").hide()
        $("#nothesis").hide()
        $("#showvideo").hide()
+       $('iframe').each(function(index) {
+       $(this).attr('src', $(this).attr('src'));
+       return false;
+     });
        $("#closeall").hide()
        $("#showabout").hide()
        $("#showcolophon").hide()