diff --git a/addons/point_of_sale/static/src/css/pos.css b/addons/point_of_sale/static/src/css/pos.css
index 2294513a389..d78276b2b97 100644
--- a/addons/point_of_sale/static/src/css/pos.css
+++ b/addons/point_of_sale/static/src/css/pos.css
@@ -222,7 +222,7 @@
 .point-of-sale #rightheader .header-button:last-child{
     border-left:  1px solid #3a3a3a;
 }
-.point-of-sale #rightheader .header-button:hover{
+.point-of-sale #rightheader .header-button:active{
     background: rgba(0,0,0,0.2);
     text-shadow: #000 0px 0px 3px;
     color:#EEE;
@@ -314,18 +314,10 @@
     border-top: 1px solid #efefef;
     font-size: 14px;
 }
-.point-of-sale #paypad button, .point-of-sale #numpad button, .point-of-sale .popup button{
-    position: relative;
-    top: 0;
-    -webkit-transition: top 150ms linear;
-       -moz-transition: top 150ms linear;
-        -ms-transition: top 150ms linear;
-            transition: top 150ms linear;
-}
-.point-of-sale #paypad button:active, .point-of-sale #numpad button:active, .point-of-sale .popup button:active{
-    top:3px;
-}
-.point-of-sale #paypad button:hover, .point-of-sale #numpad button:hover, .point-of-sale #numpad .selected-mode, .point-of-sale .popup button:hover {
+.point-of-sale #paypad button:active, 
+.point-of-sale #numpad button:active, 
+.point-of-sale #numpad .selected-mode, 
+.point-of-sale .popup  button:active{
     border: none;
     color: white;
     background: #7f82ac;
@@ -525,7 +517,7 @@
        -moz-box-shadow: 0px 2px 2px rgba(0,0,0, 0.1);
             box-shadow: 0px 2px 2px rgba(0,0,0, 0.1);
 }
-.point-of-sale .category-simple-button:hover {
+.point-of-sale .category-simple-button:active{
     color: white;
     background: #7f82ac;
     border: 1px solid #7f82ac;
@@ -1056,13 +1048,13 @@
        -moz-transition: background 250ms ease-in-out;
             transition: background 250ms ease-in-out;
 }
-.point-of-sale .order .orderline:hover{
+.point-of-sale .order .orderline:active{
     background: rgba(140,143,183,0.05);
     -webkit-transition: background 50ms ease-in-out;
        -moz-transition: background 50ms ease-in-out;
             transition: background 50ms ease-in-out;
 }
-.point-of-sale .order .orderline.empty:hover{
+.point-of-sale .order .orderline.empty:active{
     background: transparent;
     cursor: default;
 }
@@ -1163,7 +1155,7 @@
 .point-of-sale .pos-actionbar .button .icon{
     margin-top: 10px;
 }
-.point-of-sale .pos-actionbar .button:hover {
+.point-of-sale .pos-actionbar .button:active{
     color: white;
     background: #7f82ac;
     border: 1px solid #7f82ac;
@@ -1180,7 +1172,7 @@
 .point-of-sale .pos-actionbar .button.disabled *{
     opacity: 0.5;
 }
-.point-of-sale .pos-actionbar .button.disabled:hover{
+.point-of-sale .pos-actionbar .button.disabled:active{
     border: 1px solid #cacaca;
     border-radius: 4px;
     color: #555;
@@ -1249,7 +1241,7 @@
     display: block;
     cursor:pointer;
 }
-.point-of-sale .debug-widget .button:hover{
+.point-of-sale .debug-widget .button:active{
     background: rgba(96,21,177,0.45);
 }
 .point-of-sale .debug-widget input{
@@ -1337,7 +1329,7 @@
        -moz-box-shadow: 0px 2px 2px rgba(0,0,0, 0.3);
             box-shadow: 0px 2px 2px rgba(0,0,0, 0.3);
 }
-.point-of-sale .popup .button:hover {
+.point-of-sale .popup .button:active{
     color: white;
     background: #7f82ac;
     border: 1px solid #7f82ac;
@@ -1405,7 +1397,7 @@
        -moz-transition: all 250ms ease-in-out;
             transition: all 250ms ease-in-out;
 }
-.point-of-sale .scrollbar .button:hover{
+.point-of-sale .scrollbar .button:active{
     text-shadow: rgba(255,255,255,0.8) 0px 0px 15px;
 }
 .point-of-sale .scrollbar .button.disabled{
diff --git a/addons/point_of_sale/static/src/js/widgets.js b/addons/point_of_sale/static/src/js/widgets.js
index dc00c995480..c67bb609a96 100644
--- a/addons/point_of_sale/static/src/js/widgets.js
+++ b/addons/point_of_sale/static/src/js/widgets.js
@@ -62,10 +62,10 @@ function openerp_pos_widgets(instance, module){ //module is instance.point_of_sa
         start: function() {
             this.state.bind('change:mode', this.changedMode, this);
             this.changedMode();
-            this.$el.find('button#numpad-backspace').click(_.bind(this.clickDeleteLastChar, this));
-            this.$el.find('button#numpad-minus').click(_.bind(this.clickSwitchSign, this));
-            this.$el.find('button.number-char').click(_.bind(this.clickAppendNewChar, this));
-            this.$el.find('button.mode-button').click(_.bind(this.clickChangeMode, this));
+            this.$el.find('.numpad-backspace').click(_.bind(this.clickDeleteLastChar, this));
+            this.$el.find('.numpad-minus').click(_.bind(this.clickSwitchSign, this));
+            this.$el.find('.number-char').click(_.bind(this.clickAppendNewChar, this));
+            this.$el.find('.mode-button').click(_.bind(this.clickChangeMode, this));
         },
         clickDeleteLastChar: function() {
             return this.state.deleteLastChar();
@@ -844,12 +844,13 @@ function openerp_pos_widgets(instance, module){ //module is instance.point_of_sa
             this.cashier_controls_visible = true;
             this.image_cache = new module.ImageCache(); // for faster products image display
 
-            $('.oe_tooltip').remove();  // remove tooltip from the start session button
         },
       
         start: function() {
             var self = this;
             return self.pos.ready.done(function() {
+                $('.oe_tooltip').remove();  // remove tooltip from the start session button
+
                 self.build_currency_template();
                 self.renderElement();