diff --git a/js/app/map/map.js b/js/app/map/map.js
index fdd36e57..78360627 100644
--- a/js/app/map/map.js
+++ b/js/app/map/map.js
@@ -1315,8 +1315,8 @@ define([
             setConnectionObserver(map, connection);
         }
 
-        var addType = $(newConnectionData.type).not(connectionData.type).get();
-        var removeType = $(connectionData.type).not(newConnectionData.type).get();
+        var addType = newConnectionData.type.diff( connectionData.type );
+        var removeType = connectionData.type.diff( newConnectionData.type );
 
         // check if source or target has changed
         if(connectionData.source !== newConnectionData.source ){
diff --git a/js/app/mappage.js b/js/app/mappage.js
index 357b4e83..1d69719b 100644
--- a/js/app/mappage.js
+++ b/js/app/mappage.js
@@ -19,6 +19,8 @@ define([
      * main init "map" page
      */
     $(function(){
+        Util.initPrototypes();
+
         // set default AJAX config
         Util.ajaxSetup();
 
diff --git a/js/app/util.js b/js/app/util.js
index 58177845..24244b14 100644
--- a/js/app/util.js
+++ b/js/app/util.js
@@ -847,6 +847,18 @@ define([
         console.info('PATHFINDER ' + versionNumber);
     };
 
+    /**
+     * init utility prototype functions
+     */
+    var initPrototypes = function(){
+        // Array diff
+        // [1,2,3,4,5,6].diff( [3,4,5] );
+        // => [1, 2, 6]
+        Array.prototype.diff = function(a) {
+            return this.filter(function(i) {return a.indexOf(i) < 0;});
+        };
+    };
+
     /**
      * set default configuration  for "Bootbox" dialogs
      */
@@ -1818,6 +1830,7 @@ define([
     return {
         config: config,
         showVersionInfo: showVersionInfo,
+        initPrototypes: initPrototypes,
         initDefaultBootboxConfig: initDefaultBootboxConfig,
         getCurrentTriggerDelay: getCurrentTriggerDelay,
         getServerTime: getServerTime,
diff --git a/js/lib/jquery.dragToSelect.js b/js/lib/jquery.dragToSelect.js
index 0a3504b1..e37756fb 100644
--- a/js/lib/jquery.dragToSelect.js
+++ b/js/lib/jquery.dragToSelect.js
@@ -103,12 +103,12 @@ jQuery.fn.dragToSelect = function (conf) {
 
 	// Current origin of select box
 	var selectBoxOrigin = {
-		left:	0, 
+		left:	0,
 		top:	0
 	};
 
 	// Create select box
-	var selectBox = jQuery('<div/>')
+	var selectBox = $('<div>')
 						.appendTo(parent)
 						.attr('class', config.className)
 						.css('position', 'absolute');
@@ -119,8 +119,8 @@ jQuery.fn.dragToSelect = function (conf) {
 			return;
 		}
 
-		selectBoxOrigin.left	= e.pageX - parentDim.left + parent[0].scrollLeft;
-		selectBoxOrigin.top		= e.pageY - parentDim.top + parent[0].scrollTop;
+		selectBoxOrigin.left	= e.pageX - parentDim.left + parent[0].scrollLeft - 5;
+		selectBoxOrigin.top		= e.pageY - parentDim.top + parent[0].scrollTop - 5;
 
 		var css = {
 			left:		selectBoxOrigin.left + 'px', 
diff --git a/public/js/v1.1.6/app/map/map.js b/public/js/v1.1.6/app/map/map.js
index fdd36e57..78360627 100644
--- a/public/js/v1.1.6/app/map/map.js
+++ b/public/js/v1.1.6/app/map/map.js
@@ -1315,8 +1315,8 @@ define([
             setConnectionObserver(map, connection);
         }
 
-        var addType = $(newConnectionData.type).not(connectionData.type).get();
-        var removeType = $(connectionData.type).not(newConnectionData.type).get();
+        var addType = newConnectionData.type.diff( connectionData.type );
+        var removeType = connectionData.type.diff( newConnectionData.type );
 
         // check if source or target has changed
         if(connectionData.source !== newConnectionData.source ){
diff --git a/public/js/v1.1.6/app/mappage.js b/public/js/v1.1.6/app/mappage.js
index 357b4e83..1d69719b 100644
--- a/public/js/v1.1.6/app/mappage.js
+++ b/public/js/v1.1.6/app/mappage.js
@@ -19,6 +19,8 @@ define([
      * main init "map" page
      */
     $(function(){
+        Util.initPrototypes();
+
         // set default AJAX config
         Util.ajaxSetup();
 
diff --git a/public/js/v1.1.6/app/util.js b/public/js/v1.1.6/app/util.js
index 58177845..24244b14 100644
--- a/public/js/v1.1.6/app/util.js
+++ b/public/js/v1.1.6/app/util.js
@@ -847,6 +847,18 @@ define([
         console.info('PATHFINDER ' + versionNumber);
     };
 
+    /**
+     * init utility prototype functions
+     */
+    var initPrototypes = function(){
+        // Array diff
+        // [1,2,3,4,5,6].diff( [3,4,5] );
+        // => [1, 2, 6]
+        Array.prototype.diff = function(a) {
+            return this.filter(function(i) {return a.indexOf(i) < 0;});
+        };
+    };
+
     /**
      * set default configuration  for "Bootbox" dialogs
      */
@@ -1818,6 +1830,7 @@ define([
     return {
         config: config,
         showVersionInfo: showVersionInfo,
+        initPrototypes: initPrototypes,
         initDefaultBootboxConfig: initDefaultBootboxConfig,
         getCurrentTriggerDelay: getCurrentTriggerDelay,
         getServerTime: getServerTime,
diff --git a/public/js/v1.1.6/lib/jquery.dragToSelect.js b/public/js/v1.1.6/lib/jquery.dragToSelect.js
index 0a3504b1..e37756fb 100644
--- a/public/js/v1.1.6/lib/jquery.dragToSelect.js
+++ b/public/js/v1.1.6/lib/jquery.dragToSelect.js
@@ -103,12 +103,12 @@ jQuery.fn.dragToSelect = function (conf) {
 
 	// Current origin of select box
 	var selectBoxOrigin = {
-		left:	0, 
+		left:	0,
 		top:	0
 	};
 
 	// Create select box
-	var selectBox = jQuery('<div/>')
+	var selectBox = $('<div>')
 						.appendTo(parent)
 						.attr('class', config.className)
 						.css('position', 'absolute');
@@ -119,8 +119,8 @@ jQuery.fn.dragToSelect = function (conf) {
 			return;
 		}
 
-		selectBoxOrigin.left	= e.pageX - parentDim.left + parent[0].scrollLeft;
-		selectBoxOrigin.top		= e.pageY - parentDim.top + parent[0].scrollTop;
+		selectBoxOrigin.left	= e.pageX - parentDim.left + parent[0].scrollLeft - 5;
+		selectBoxOrigin.top		= e.pageY - parentDim.top + parent[0].scrollTop - 5;
 
 		var css = {
 			left:		selectBoxOrigin.left + 'px',