diff --git a/400-SOURCECODE/AIAHTML5.Web/app/controllers/DAController.js b/400-SOURCECODE/AIAHTML5.Web/app/controllers/DAController.js
index d1eb55f..338f0ad 100644
--- a/400-SOURCECODE/AIAHTML5.Web/app/controllers/DAController.js
+++ b/400-SOURCECODE/AIAHTML5.Web/app/controllers/DAController.js
@@ -594,6 +594,16 @@ AIA.controller("DAController", ["$scope", "$rootScope", "$compile", "$http", "$l
     }
 
     angular.element(document).ready(function (e) {
+
+        //to get slider working on ipad
+        var $ua = navigator.userAgent;
+        
+        if (($ua.match(/(iPod|iPhone|iPad|android)/i))) {
+        
+              $("#layerChangeSlider").css("pointer-events", "auto");
+        
+         }
+
         $(document).on("click", "#daImagePanel .jsPanel-hdr .jsPanel-hdr-r .jsPanel-btn-close .jsglyph-remove", function () {
             $rootScope.selectedBodySystemName = 'All';
             $rootScope.selectedBodySystemId = 0;
@@ -4235,6 +4245,13 @@ AIA.controller("DAController", ["$scope", "$rootScope", "$compile", "$http", "$l
             $scope.horizontlScrollPosition = canvasDiv.scrollLeft;
 
             var canvasDiv = document.getElementById('canvasDiv');
+
+            canvasDiv.addEventListener("touchstart", mouseDownListener);
+
+           canvasDiv.addEventListener("touchmove", mouseMoveListener);
+         
+           canvasDiv.addEventListener("touchend", mouseUpListener);
+
             canvasDiv.addEventListener("mousedown", mouseDownListener);
 
             canvasDiv.addEventListener("mousemove", mouseMoveListener);
@@ -4269,6 +4286,8 @@ AIA.controller("DAController", ["$scope", "$rootScope", "$compile", "$http", "$l
 
     function mouseDownListener(e) {
 
+        //to prevent screen scroll on ipad while drawing TB
+        e.preventDefault();
         //Dated:18-07-2016 Issue#4975: Transparency box should not be clickable if it is already selected.
         var tCanvas = document.getElementById('transparencyCanvas');
         if ($('#transparencyScale').css("visibility") == 'visible') {
@@ -4326,6 +4345,9 @@ AIA.controller("DAController", ["$scope", "$rootScope", "$compile", "$http", "$l
 
     function mouseMoveListener(e) {
 
+        //to prevent screen scroll on ipad while drawing TB
+        e.preventDefault();
+
         var canvasDiv = document.getElementById('canvasDiv');
         $scope.verticalScrollPosition = canvasDiv.scrollTop;
         $scope.horizontlScrollPosition = canvasDiv.scrollLeft;
@@ -4353,6 +4375,9 @@ AIA.controller("DAController", ["$scope", "$rootScope", "$compile", "$http", "$l
 
     function mouseUpListener(e) {
        
+        //to prevent screen scroll on ipad while drawing TB
+        e.preventDefault();
+
         $scope.isTBDrawnOnBodyRegion = false;
 
         $(".com").remove();
@@ -4583,6 +4608,13 @@ AIA.controller("DAController", ["$scope", "$rootScope", "$compile", "$http", "$l
         document.getElementById('canvasDiv').removeEventListener("mousemove", mouseMoveListener);
 
         document.getElementById('canvasDiv').removeEventListener("mouseup", mouseUpListener);
+
+
+        document.getElementById('canvasDiv').removeEventListener("touchstart", mouseDownListener);
+        
+        document.getElementById('canvasDiv').removeEventListener("touchmove", mouseMoveListener);
+        
+       document.getElementById('canvasDiv').removeEventListener("touchend", mouseUpListener);
         //    document.getElementById('canvasDiv').removeEventListener("mousemove", mouseMoveListener);
         $('#btnTranparency').removeClass('btn-black');