diff --git a/css/backoffice/pages/_impact-analysis.scss b/css/backoffice/pages/_impact-analysis.scss
index e571ae0a4..9357552d6 100644
--- a/css/backoffice/pages/_impact-analysis.scss
+++ b/css/backoffice/pages/_impact-analysis.scss
@@ -3,6 +3,9 @@ $ibo-impact-analysis--graph-zoom-slider--width: 10em !default;
 
 $ibo-impact-analysis--graph-zoom-plus-minus--margin-x: 0.5em !default;
 
+$ibo-simple-graph--margin-top: 10px !default;
+$ibo-simple-graph--border-radius: 5px !default;
+$ibo-simple-graph--hover--border-color: 10px !default;
 $ibo-simple-graph--grouping-threshold-additional-context--container--margin-right: 0.3em !default;
 $ibo-simple-graph--grouping-threshold-additional-context--content--margin-right: 1em !default;
 
@@ -13,7 +16,15 @@ $ibo-display-graph--search-box--criterion--content--padding-x: 15px !default;
 
 $ibo-display-graph--search-box--criterion--content--checkbox--margin-right: 10px !default;
 
+.itop-simple-graph {
+  margin-top: $ibo-simple-graph--margin-top;
+  border: 1px dotted transparent;
+  border-radius: $ibo-simple-graph--border-radius;
 
+  &.ibo-has-focus {
+    border: 1px dotted $ibo-simple-graph--hover--border-color;
+  }
+}
 .graph_zoom {
   display: flex;
   float: right;
diff --git a/js/simple_graph.js b/js/simple_graph.js
index 614cacda1..8282fa13d 100644
--- a/js/simple_graph.js
+++ b/js/simple_graph.js
@@ -46,7 +46,10 @@ $(function()
 			additional_contexts: [],
 			context_key: ''
 		},
-	
+		css_classes:
+		{
+			has_focus: 'ibo-has-focus'
+		},
 		// the constructor
 		_create: function()
 		{
@@ -85,9 +88,18 @@ $(function()
 			}
 			$(window).bind('resized', function() { var that = me; window.setTimeout(function() { that._on_resize(); }, 50); } );
 			$('#dh_flash').bind('toggle_complete', function() { var that = me; window.setTimeout(function() { that._on_resize(); }, 50); } );
-			this.element.bind('mousewheel', function(event, delta, deltaX, deltaY) {
+			this.element.on('mousewheel', function(event, delta, deltaX, deltaY) {
 			    return me._on_mousewheel(event, delta, deltaX, deltaY);
 			});
+			$(document).on('click', function (e) {
+				if ($(e.target).closest(me.element).length === 0) {
+					me.element.removeClass(me.css_classes.has_focus);
+				}
+				else
+				{
+					me.element.addClass(me.css_classes.has_focus);
+				}
+			});
 			if (this.options.source_url != null)
 			{
 				this.load_from_url(this.options.source_url);
@@ -677,9 +689,12 @@ $(function()
 		},
 		_on_mousewheel: function(event, delta, deltaX, deltaY)
 		{
-			var fStep = 0.25*delta;
-			var sId = this.element.attr('id');
-			$('#'+sId+'_zoom').slider('value', fStep + $('#'+sId+'_zoom').slider('value'));
+			if(this.element.hasClass(this.css_classes.has_focus))
+			{
+				var fStep = 0.25*delta;
+				var sId = this.element.attr('id');
+				$('#'+sId+'_zoom').slider('value', fStep + $('#'+sId+'_zoom').slider('value'));
+			}
 		},
 		_on_resize: function()
 		{