+// http://stackoverflow.com/questions/7837456/comparing-two-arrays-in-javascript
+// attach the .equals method to Array's prototype to call it on any array
+Array.prototype.equals = function (array) {
+ // if the other array is a falsy value, return
+ if (!array)
+ return false;
+
+ // compare lengths - can save a lot of time
+ if (this.length != array.length)
+ return false;
+
+ for (var i = 0, l=this.length; i < l; i++) {
+ // Check if we have nested arrays
+ if (this[i] instanceof Array && array[i] instanceof Array) {
+ // recurse into the nested arrays
+ if (!this[i].equals(array[i]))
+ return false;
+ }
+ else if (this[i] != array[i]) {
+ // Warning - two different object instances will never be equal: {x:20} != {x:20}
+ return false;
+ }
+ }
+ return true;
+}
+