diff --git a/application/helpers/qanda_helper.php b/application/helpers/qanda_helper.php
index ef75da482de..7cebe5a2ac5 100644
--- a/application/helpers/qanda_helper.php
+++ b/application/helpers/qanda_helper.php
@@ -2985,22 +2985,6 @@ function do_multiplenumeric($ia)
         $slider_separator= (trim($aQuestionAttributes['slider_separator'])!='')?$aQuestionAttributes['slider_separator']:"";
         $slider_reset=($aQuestionAttributes['slider_reset'])?1:0;
 
-        if ($slider_default != "")
-        {
-            $slider_startvalue = $slider_default;
-            $slider_displaycallout=1;
-        }
-        elseif ($slider_middlestart != '')
-        {
-            $slider_startvalue = $slider_middlestart;
-            $slider_displaycallout=0;
-        }
-        else
-        {
-            $slider_startvalue = 'NULL';
-            $slider_displaycallout=0;
-        }
-
     }
     else
     {
@@ -3012,7 +2996,6 @@ function do_multiplenumeric($ia)
         $slider_max     = '';
         $slider_maxtext = '';
         $slider_default = '';
-        $slider_default = '';
         $slider_orientation= '';
         $slider_handle = '';
         $slider_custom_handle = '';
@@ -3082,26 +3065,45 @@ function do_multiplenumeric($ia)
             //list($htmltbody2, $hiddenfield)=return_array_filter_strings($ia, $aQuestionAttributes, $thissurvey, $ansrow, $myfname, '', $myfname, "div","form-group question-item answer-item text-item numeric-item".$extraclass);
             $sDisplayStyle = return_display_style($ia, $aQuestionAttributes, $thissurvey, $myfname);
 
+            // TODO : check why it's done here a second time
             $sSeparator = getRadixPointData($thissurvey['surveyls_numberformat']);
             $sSeparator = $sSeparator['separator'];
 
-            // Default answer is stored in _SESSION
-            $dispVal='';
+
+            // The value of the slider depends on many possible different parameters, by order of priority :
+            // 1. The value stored in the session
+            // 2. Else the default Answer   --> Supposed to be set by EM and stored in session ?
+            // 3. Else the middle start
+            // 4. Else the init value
+            // 5. If no value at all, the "user no action" is recorded as null in the database
+            //
+            // Dev team is invited to tell if they agree/disagree with this order.
+
+            $sValue = 'NULL';
+            $slider_displaycallout=0;
+
+            // value stored in _SESSION
             if (isset($_SESSION['survey_'.Yii::app()->getConfig('surveyID')][$myfname]))
             {
-                $dispVal = $_SESSION['survey_'.Yii::app()->getConfig('surveyID')][$myfname];
-                if(strpos($dispVal,"."))
-                {
-                    $dispVal=rtrim(rtrim($dispVal,"0"),".");
-                }
-                $dispVal = str_replace('.',$sSeparator,$dispVal);
+                $sValue = $_SESSION['survey_'.Yii::app()->getConfig('surveyID')][$myfname];
             }
+            elseif( $slider_default != "" )
+            {
+                $sValue = $slider_default;
+            }
+            elseif( isset($slider_middlestart) && $slider_middlestart!='')
+            {
+                $sValue = $slider_middlestart;
+            }
+
 
-            if( isset($slider_middlestart) && $slider_middlestart!='')
+            if(strpos($sValue,"."))
             {
-                $slider_default = $slider_middlestart;
+                $sValue = rtrim(rtrim($sValue,"0"),".");
+                $sValue = str_replace('.',$sSeparator,$sValue);
             }
 
+
             $itemDatas = array(
                 'qid'=>$ia[0],
                 'extraclass'=>$extraclass,
@@ -3118,7 +3120,7 @@ function do_multiplenumeric($ia)
                 'suffix'=>$suffix,
                 'tiwidth'=>$tiwidth,
                 'myfname'=>$myfname,
-                'dispVal'=>$dispVal,
+                'dispVal'=>$sValue,
                 'maxlength'=>$maxlength,
                 'labelText'=>$labelText,
                 'checkconditionFunction'=>$checkconditionFunction.'(this.getAttribute(\'stringvalue\'), this.name, this.type)',
@@ -3132,8 +3134,8 @@ function do_multiplenumeric($ia)
                 'slider_handle' => $slider_handle,
                 'slider_reset' => $slider_reset,
                 'slider_custom_handle' => $slider_custom_handle,
-                'slider_startvalue' => $slider_startvalue,
-                'slider_displaycallout' => $slider_displaycallout
+                'slider_displaycallout' => $slider_displaycallout,
+                'sSeparator'=> $sSeparator,
             );
             $answer .= Yii::app()->getController()->renderPartial('/survey/questions/multiplenumeric/item', $itemDatas, true);
 
diff --git a/application/views/survey/questions/multiplenumeric/item.php b/application/views/survey/questions/multiplenumeric/item.php
index f0af7289bdb..2478b009631 100644
--- a/application/views/survey/questions/multiplenumeric/item.php
+++ b/application/views/survey/questions/multiplenumeric/item.php
@@ -44,6 +44,7 @@ class="text form-control numeric <?php echo $kpclass;?>"
                     <?php echo $maxlength; ?>
                 />
             <?php else:?>
+                <?php echo "IKI" . $dispVal;?>
                 <input
                     class="text form-control <?php echo $kpclass;?>"
                     type="text"
@@ -53,6 +54,7 @@ class="text form-control <?php echo $kpclass;?>"
                     value="<?php echo $dispVal;?>"
                     onkeyup="<?php echo $checkconditionFunction; ?>"
                     <?php echo $maxlength; ?>
+                    data-slider-value="<?php // echo $dispVal;?>5.2"
                     data-slider-min='<?php echo $slider_min;?>'
                     data-slider-max='<?php echo $slider_max;?>'
                     data-slider-step='<?php echo $slider_step;?>'
@@ -63,8 +65,7 @@ class="text form-control <?php echo $kpclass;?>"
                     data-slider-reset='<?php echo $slider_reset; ?>'
                     data-slider-prefix='<?php echo $prefix; ?>'
                     data-slider-suffix='<?php echo $suffix; ?>'
-                    data-slider-startvalue='<?php echo $slider_startvalue; ?>'
-                    data-slider-displaycallout='<?php echo $slider_displaycallout; ?>'
+                    data-separator='<?php echo $sSeparator;?>'
                 />
             <?php endif;?>
             <?php echo $sliderright;?>
@@ -98,111 +99,32 @@ class="text form-control <?php echo $kpclass;?>"
     </div>
     <script type='text/javascript'>
         <!--
-            // TODO: This code should be moved to e.g. numerical-slider.js
             $(document).ready(function(){
                 var myfname = '<?php echo $myfname; ?>';
-                var dispVal = parseFloat('<?php echo $dispVal; ?>');
-                var id = '#answer' + myfname;
-                var resetSliderId = id + '_resetslider';
-                var slider_prefix = $(id).attr('data-slider-prefix')
-                var slider_suffix = $(id).attr('data-slider-suffix')
+                var $inputEl = $('#answer' + myfname);
+                console.log( $inputEl.attr('id'));
+                var $prefix = $inputEl.data('slider-prefix');
+                var $suffix = $inputEl.data('slider-suffix');
+                var $separator = $inputEl.data('separator');
 
-                var mySlider_<?php echo $myfname; ?> = $(id).bootstrapSlider({
+                var mySlider_<?php echo $myfname; ?> = $inputEl.bootstrapSlider({
                     formatter: function (value) {
-                        var displayValue = '' + value;
-                        var displayValue = displayValue.replace(/\./,LSvar.sLEMradix);
-                        return slider_prefix + displayValue + slider_suffix;
+                        displayValue = value.toString().replace('.',$separator);
+                        return $prefix + displayValue + $suffix;
                     },
-                    value: parseFloat('<?php echo $dispVal; ?>')
                 });
 
-                // Hide tooltip
-                $('#javatbd' + myfname).find('.tooltip').hide();
-
-                // Set value at init
-                var slider_startvalue = $(id).attr('data-slider-startvalue');
-                if (slider_startvalue === 'NULL' && !isNaN(dispVal)) {
-                    $(id).attr('stringvalue', dispVal);  // stringvalue is the value handed to EM, since Bootstrap slider can't handle ","
-                    LEMrel<?php echo $qid; ?>();
-                    $(id).triggerHandler("keyup");
-
-                    // Show tooltip
-                    $('#javatbd' + myfname).find('.tooltip').show();
-                }
-                else if (slider_startvalue !== 'NULL') {
-                    var displayValue = '' + slider_startvalue;
-                    var displayValue = displayValue.replace(/\./,LSvar.sLEMradix);
-                    $(id).bootstrapSlider('setValue', parseFloat(slider_startvalue));
-                    $(id).attr('stringvalue', displayValue);  // stringvalue is the value handed to EM, since Bootstrap slider can't handle ","
-                    LEMrel<?php echo $qid; ?>();
-                    $(id).triggerHandler("keyup");
-
-                    // Show tooltip
-                    $('#javatbd' + myfname).find('.tooltip').show();
-                    $(id).bootstrapSlider('relayout');  // Refresh the tooltip
-                }
-
-                // Reset on click on .slider-reset
-                $(resetSliderId).on("click", function() {
-                    var slider_startvalue = $(id).attr('data-slider-startvalue');
-
-                    // Callout is the thing above the slider that displays the 
-                    // current number. Boolean variable.
-                    var slider_displaycallout = $(id).attr('data-slider-displaycallout');
-
-                    if(slider_startvalue == "NULL") {
-                        $(id).attr('value', '');  // Never use bootstrapSlider('setValue', ...), because it won't accept empty string (will convert to 0)
-                        $(id).attr('stringvalue', '');
-
-                        // Hide tooltip
-                        $('#javatbd' + myfname).find('.tooltip').hide();
-                    }
-                    else {
-                        $(id).bootstrapSlider('setValue', parseFloat(slider_startvalue));
-                        $(id).attr('stringvalue', slider_startvalue);
-
-                        // Show tooltip
-                        $('#javatbd' + myfname).find('.tooltip').show();
-                    }
-
-                    if(slider_displaycallout && slider_startvalue != "NULL") {
-                        $(id).attr('stringvalue', slider_prefix + slider_startvalue.replace(/\./,LSvar.sLEMradix) + slider_suffix);
-                        $(id).bootstrapSlider('setValue', parseFloat(slider_startvalue));
-
-                        // Show tooltip
-                        $('#javatbd' + myfname).find('.tooltip').show();
-                    }
-                    else {
-                        $(id).attr('value', '');
-                        $(id).attr('stringvalue', '');
-
-                        // Hide tooltip
-                        $('#javatbd' + myfname).find('.tooltip').hide();
-                    }
-
-                    LEMrel<?php echo $qid; ?>();
-                    $(id).triggerHandler("keyup"); // Needed for EM
-
+                mySlider_<?php echo $myfname; ?>.on('slideStop', function(){
+                    value = $inputEl.val();
+                    displayValue = value.toString().replace('.',$separator);
+                    $inputEl.val(displayValue);
+                    //console.log('LA '+$value);
+                    LEMrel<?php echo $qid; ?>()
                 });
+                $("#vmsg_<?php echo $qid;?>_default").text('<?php eT('Please click and drag the slider handles to enter your answer.');?>');
 
-                mySlider_<?php echo $myfname; ?>.on('slideStop', function(event) {
-                    var displayValue = '' + event.value;  // Type-cast to string
-                    var displayValue = displayValue.replace(/\./,LSvar.sLEMradix);
-
-                    // fixnum_checkconditions can't handle dot if it expects comma, and
-                    // Bootstrap won't save comma in value. So we need another attribute.
-                    $(id).attr('stringvalue', displayValue);
-
-                    LEMrel<?php echo $qid; ?>();
-
-                    // EM needs this
-                    $(id).triggerHandler("keyup");
-
-                });
-                mySlider_<?php echo $myfname; ?>.on('slideStart', function(event) {
-                    // Show tooltip
-                    $('#javatbd' + myfname).find('.tooltip').show();
-                });
+                // Hide tooltip
+//                $('#javatbd' + myfname).find('.tooltip').hide();
 
                 $("#vmsg_<?php echo $qid;?>_default").text('<?php eT('Please click and drag the slider handles to enter your answer.');?>');
             });