defer kronaplot loading

lib/imp.js

@@ -316,6 +316,13 @@ $('.right.carousel-control').click(function(){
 $('#tabs li:first > a').tab('show');
 
 
+// load kronaplot if people click on tab. Make a lot of errors if loaded from begenning.
+$('#annottab').on('show.bs.tab', function (e) {
+    if($("#MG-kronaplot").attr('src') === undefined){
+        $("#ifr-kronaplot").attr('src', 'Analysis/results/MG.gene_kegg_krona.html');
+    }
+});
+
 //load html tables
 // $(".table-result").each(function(idx, node) {
 //   var ident = node.id;