diff -r aca69a9db743 -r 9ef0952033e0 cms/app-client/app/components/visu-chrono.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/app-client/app/components/visu-chrono.js	Thu Dec 10 17:00:02 2015 +0100
@@ -0,0 +1,28 @@
+import Ember from 'ember';
+
+export default Ember.Component.extend({
+  didInsertElement: function(){
+    var isMouseDown = false,
+      isHighlighted;
+    $("#our_table li")
+      .mousedown(function () {
+        isMouseDown = true;
+        $(this).toggleClass("highlighted");
+        isHighlighted = $(this).hasClass("highlighted");
+        return false; // prevent text selection
+      })
+      .mouseover(function () {
+        if (isMouseDown) {
+          $(this).toggleClass("highlighted", isHighlighted);
+        }
+      })
+      .bind("selectstart", function () {
+        return false;
+      })
+
+    $(document)
+      .mouseup(function () {
+        isMouseDown = false;
+      });
+  }
+});