Something

function getNrDaysLeft( param_year, param_month, param_day ):Number
{
	var endDate:Date = new Date( param_year, param_month-1, param_day );

	var todayDate:Date = new Date();

	trace( endDate );
	trace( todayDate );
	
	var diff:Number = endDate.getTime() - todayDate.getTime();
	
	if ( diff < 0 ) {
		return 0;
	}
	else {
		return Math.ceil( diff / ( 1000 * 24 * 60 * 60 ) );
	}
}


//////////////////////////
var nrDaysLeft:Number = getNrDaysLeft( 2007, 7, 1 );