gistfile1.as

if (todayIsInRange('1/1', '3/20')){
	gotoAndStop("winter");
}
else if (todayIsInRange('3/21', '5/17')){
	gotoAndStop("spring");
}
else if (todayIsInRange('5/18', '5/31')){
	gotoAndStop("memorial");
}
else if (todayIsInRange('6/1', '7/4')){
	gotoAndStop("july4th");
}
else if (todayIsInRange('7/5', '8/22')){
	gotoAndStop("summer");
}
else if (todayIsInRange('8/23', '9/6')){
	gotoAndStop("laborday");
}
else if (todayIsInRange('9/7', '10/31'){
	gotoAndStop("fall");
}
else if (todayIsInRange('11/1', '12/31')){
	gotoAndStop("holiday");
}
else {
	// If we get here, today's date didn't
	// fall in any range listed above.
	// You should put the error, or the default action here.
}

// helper functions

// returns true if today is on or between the start and end month/day
function todayIsInRange(start, end) {
	var today = new Date();
	var current_year = today.getYear();
	
	var start_date = getDateFromShortHand(start, current_year);
	var end_date = getDateFromShortHand(end, current_year);
	
	return (start_date <= today) && (today <= end_date);
}

// turns strings in the 'month/day' format into actual dates for the specified year.
// for example:
//    getDateFromShortHand('11/2', 2010);
// returns: 
//    the date type for '2/11/2010'
function getDateFromShortHand(monthDayShorthand, year){
	var array = monthDayShorthand.split("/");
	var month = array[0];
	var day = array[1];
	return new Date(year, month - 1, day);
}