...
var myMonth = V1.getMonth();
var myYear = V1.getYeargetFullYear();
if (myYear <= 2015) { // previous year = 2015, replace as appropriate
...
...
var myMonth = V1.getMonth();
var myYear = V1.getYeargetFullYear();
if (myYear <= 2015) { // previous year = 2015, replace as appropriate
...