Fixed graph bug that threw error if div didn't exist.

profile_graphs.js

@@ -94,7 +94,9 @@ $(function () {
     legend: {show: false},
   };
   
+  if ($("#grade-detail-graph").length > 0) {
     $.plot($("#grade-detail-graph"), series, options);
+  }
       
   var previousPoint = null;
   $("#grade-detail-graph").bind("plothover", function (event, pos, item) {
@@ -167,6 +169,7 @@ $(function () {
   };
 
   var $gradeOverviewGraph = $("#grade-overview-graph");
+  if ($gradeOverviewGraph.length > 0) {
     var plot = $.plot($gradeOverviewGraph, series, options);
   
     //Put the percent on the graph
@@ -174,7 +177,7 @@ $(function () {
     $gradeOverviewGraph.append('<div style="position:absolute;left:' + (o.left + 4) + 'px;top:' + (o.top - 10) + 'px">${"{:.0%}".format(totalScore)}</div>');
       
       
-  $("#grade-overview-graph").bind("plothover", function (event, pos, item) {
+    $gradeOverviewGraph.bind("plothover", function (event, pos, item) {
       $("#x").text(pos.x.toFixed(2));
       $("#y").text(pos.y.toFixed(2));
       if (item) {
@@ -198,5 +201,5 @@ $(function () {
         previousPoint = null;            
       }
     });
-      
+  }
 });