Small code snippet that calculates the number of the selected day in the overall year (e.g. 1st Feb is the 32nd day of the year).

function getDayInYear(day:int,month:int,year:int):int
{
var day:int = day;
var month:int = month;
var year:int = year;
var dias:Array = [31,28,31,30,31,30,31,31,30,31,30];
if(year%4 == 0 && month > 1)
day++;
for(var i:int = 0;i < month;i++) day+=dias[i]; return day; }