Prototype ¬ Detail

author: Madokan [+], Submitted: 03.02.04 8a

// Value 86400000 result from (millisec*seconds*mins*hours) (1000*60*60*24)
Date.prototype.getCommingDaysOfYear = function() {
	return Math.abs(Math.floor((this-new Date(this.getFullYear()+1, 0, 1))/86400000)+((new Date(this.getFullYear(), 2, 0).getDate()) == 29 ? 1 : 0));
};

usage

// Usage
datum = new Date();
trace("Days: " + datum.getCommingDaysOfYear());