diff --git a/libreplan-webapp/src/main/webapp/dashboard/_dashboardfororder.zul b/libreplan-webapp/src/main/webapp/dashboard/_dashboardfororder.zul
index e90c5429a..5f00c4343 100644
--- a/libreplan-webapp/src/main/webapp/dashboard/_dashboardfororder.zul
+++ b/libreplan-webapp/src/main/webapp/dashboard/_dashboardfororder.zul
@@ -131,6 +131,19 @@
         var global_progress = { };
     </script>
 
+    <n:style type="text/css">
+        .tooltip {
+            display:none;
+            position:absolute;
+            border:1px solid #333;
+            background-color:#161616;
+            border-radius:5px;
+            padding:10px;
+            color:#fff;
+            font-size:12px Arial;
+        }
+    </n:style>
+
     <globalProgress />
 
     <!-- Include jqPlot styles -->
diff --git a/libreplan-webapp/src/main/webapp/dashboard/_globalProgress.zul b/libreplan-webapp/src/main/webapp/dashboard/_globalProgress.zul
index cfc3ad06d..408c5151a 100644
--- a/libreplan-webapp/src/main/webapp/dashboard/_globalProgress.zul
+++ b/libreplan-webapp/src/main/webapp/dashboard/_globalProgress.zul
@@ -63,7 +63,34 @@
             if (series !== undefined) {
                 this.series = jQuery.parseJSON(series);
             }
-            this.plot = $.jqplot(this.id, jQuery.parseJSON(data), this);
+            data = jQuery.parseJSON(data);
+            this.plot = $.jqplot(this.id, data, this);
+            this.attachTooltip();
+        },
+        attachTooltip: function() {
+            var node = $('#' + this.id);
+            node.bind('jqplotDataHighlight',
+                function (ev, seriesIndex, pointIndex, data) {
+                    var x = ev.pageX - node.offset().left;
+                    var y = ev.pageY - node.offset().top;
+
+                    var tooltip = $('<span class="tooltip"></span>');
+
+                    tooltip.text(data[0]).appendTo(node);
+                    tooltip.css({'top': y, 'left': x, 'position': 'absolute'});
+                    tooltip.fadeIn('slow');
+                }
+            );
+            node.bind('jqplotDataUnhighlight',
+                function (ev) {
+                    $('.tooltip').remove();
+                }
+            );
+            node.mousemove(function(ev) {
+                var x = ev.pageX - node.offset().left;
+                var y = ev.pageY - node.offset().top;
+                $('.tooltip').css({'top': y, 'left': x, 'position': 'absolute'})
+            });
         }
     };