--- /dev/null
+define(function () {
+
+ /**
+ * gets date quarter
+ */
+ function quarter(date){
+ var month = date.getMonth();
+ if (month < 3) return 1;
+ if (month < 6) return 2;
+ if (month < 9) return 3;
+ return 4;
+ }
+
+ return quarter;
+
+});