* code style

Sortable.js

@@ -4,7 +4,6 @@
  * @license MIT
  */
 
-
 (function (factory) {
 	"use strict";
 
@@ -24,10 +23,10 @@
 })(function () {
 	"use strict";
 
-	if (typeof window == "undefined" || typeof window.document == "undefined") {
-		return function() {
-			throw new Error( "Sortable.js requires a window with a document" );
-		}
+	if (typeof window == "undefined" || !window.document) {
+		return function SortableError() {
+			throw new Error("Sortable.js requires a window with a document");
+		};
 	}
 
 	var dragEl,

knockout-sortable.js

@@ -1,55 +1,61 @@
+/*global ko*/
+
 (function (factory) {
-    "use strict";
-    //get ko ref via global or require
-    var koRef;
-    if (typeof ko !== 'undefined') {
-      //global ref already defined
-      koRef = ko;
-    }
-    else if (typeof require === 'function' && typeof exports === 'object' && typeof module === 'object') {
-      //commonjs / node.js
-      koRef = require('knockout');
-    }
-    //get sortable ref via global or require
-    var sortableRef;
-    if (typeof Sortable !== 'undefined') {
-      //global ref already defined
-      sortableRef = Sortable;
-    }
-    else if (typeof require === 'function' && typeof exports === 'object' && typeof module === 'object') {
-      //commonjs / node.js
-      sortableRef = require('sortablejs');
-    }
-    //use references if we found them
-    if (koRef !== undefined && sortableRef !== undefined) {
-      factory(koRef, sortableRef);
-    }
-    //if both references aren't found yet, get via AMD if available
-    else if (typeof define === 'function' && define.amd){
-      //we may have a reference to only 1, or none
-      if (koRef !== undefined && sortableRef === undefined) {
-        define(['./Sortable'], function(amdSortableRef){ factory(koRef, amdSortableRef); });
-      }
-      else if (koRef === undefined && sortableRef !== undefined) {
-        define(['knockout'], function(amdKnockout){ factory(amdKnockout, sortableRef); });
-      }
-      else if (koRef === undefined && sortableRef === undefined) {
-        define(['knockout', './Sortable'], factory);
-      }
-    }
-    //no more routes to get references
-    else {
-      //report specific error
-      if (koRef !== undefined && sortableRef === undefined) {
-        throw new Error('knockout-sortable could not get reference to Sortable');
-      }
-      else if (koRef === undefined && sortableRef !== undefined) {
-        throw new Error('knockout-sortable could not get reference to Knockout');
-      }
-      else if (koRef === undefined && sortableRef === undefined) {
-        throw new Error('knockout-sortable could not get reference to Knockout or Sortable');
-      }
-    }
+	"use strict";
+	//get ko ref via global or require
+	var koRef;
+	if (typeof ko !== 'undefined') {
+		//global ref already defined
+		koRef = ko;
+	}
+	else if (typeof require === 'function' && typeof exports === 'object' && typeof module === 'object') {
+		//commonjs / node.js
+		koRef = require('knockout');
+	}
+	//get sortable ref via global or require
+	var sortableRef;
+	if (typeof Sortable !== 'undefined') {
+		//global ref already defined
+		sortableRef = Sortable;
+	}
+	else if (typeof require === 'function' && typeof exports === 'object' && typeof module === 'object') {
+		//commonjs / node.js
+		sortableRef = require('sortablejs');
+	}
+	//use references if we found them
+	if (koRef !== undefined && sortableRef !== undefined) {
+		factory(koRef, sortableRef);
+	}
+	//if both references aren't found yet, get via AMD if available
+	else if (typeof define === 'function' && define.amd) {
+		//we may have a reference to only 1, or none
+		if (koRef !== undefined && sortableRef === undefined) {
+			define(['./Sortable'], function (amdSortableRef) {
+				factory(koRef, amdSortableRef);
+			});
+		}
+		else if (koRef === undefined && sortableRef !== undefined) {
+			define(['knockout'], function (amdKnockout) {
+				factory(amdKnockout, sortableRef);
+			});
+		}
+		else if (koRef === undefined && sortableRef === undefined) {
+			define(['knockout', './Sortable'], factory);
+		}
+	}
+	//no more routes to get references
+	else {
+		//report specific error
+		if (koRef !== undefined && sortableRef === undefined) {
+			throw new Error('knockout-sortable could not get reference to Sortable');
+		}
+		else if (koRef === undefined && sortableRef !== undefined) {
+			throw new Error('knockout-sortable could not get reference to Knockout');
+		}
+		else if (koRef === undefined && sortableRef === undefined) {
+			throw new Error('knockout-sortable could not get reference to Knockout or Sortable');
+		}
+	}
 })(function (ko, Sortable) {
     "use strict";