fixed key to option

public/form_modules/forms/base/config/forms.client.config.js

@@ -28,7 +28,8 @@ angular.module('view-form')
 		}
 		return 0;
 	};
-}).value('supportedFields', [
+})
+.value('supportedFields', [
 	'textfield',
 	'textarea',
 	'date',
@@ -42,7 +43,14 @@ angular.module('view-form')
 	'yes_no',
 	'number',
 	'natural'
-]).constant('VIEW_FORM_URL', '/forms/:formId/render');
+])
+.constant('VIEW_FORM_URL', '/forms/:formId/render')
+.filter('indexToAlphabet', function(){
+	return function(index){
+		var char = String.fromCharCode(index + 65);
+		return char;
+	};
+})
 
 //Angular-Scroll Settings
 angular.module('view-form').value('duScrollActiveClass', 'activeField')

public/form_modules/forms/base/directives/submit-form.client.directive.js

@@ -15,7 +15,7 @@ angular.module('view-form').directive('submitFormDirective', ['$http', 'TimeCoun
             templateUrl: 'form_modules/forms/base/views/directiveViews/form/submit-form.client.view.html',
 			restrict: 'E',
             scope: {
-                myform:'='
+                myform: '='
             },
             controller: function($document, $window, $scope){
 		        var FORM_ACTION_ID = 'submit_field';

public/form_modules/forms/base/views/directiveViews/field/radio.html

@@ -23,7 +23,7 @@
                     style="margin: 0.5em; padding-left:30px"
                     ng-class="{activeBtn: field.fieldValue == field.fieldOptions[$index].option_value}">
 				<div class="letter" style="float:left">
-					{{$index+1}}
+					{{$index | indexToAlphabet}}
 				</div>
 				<input ng-style="{'color': design.colors.answerColor, 'border-color': design.colors.answerColor}"
 					name="{{field.fieldType}}{{index}}"

public/form_modules/forms/directives/key-to-option.client.directive.js

@@ -9,15 +9,20 @@ angular.module('view-form').directive('keyToOption', ['$rootScope', function($ro
 		link: function($scope, $element, $attrs) {
 			$('body').on('keypress', function(event) {
 				var keyCode = event.which || event.keyCode;
-				var index = parseInt(String.fromCharCode(keyCode))-1;
 
-				if (index < $scope.field.fieldOptions.length) {
+				var index = -1;
+				if(keyCode <= 122 && keyCode >= 97){
+					index = keyCode - 97;
+				} else if (keyCode <= 90 && keyCode >= 65){
+					index = keyCode - 65;
+				}
+
+				if (index !== -1 && index < $scope.field.fieldOptions.length) {
 					event.preventDefault();
 					$scope.$apply(function () {
 						$scope.field.fieldValue = $scope.field.fieldOptions[index].option_value;
 					});
 				}
-
 			});
 		}
 	};