How Many Days Until Christmas

/*
JavaScript Bible, Fourth Edition
by Danny Goodman 

John Wiley & Sons CopyRight 2001
*/

<HTML>
<HEAD>
<TITLE>Christmas Countdown</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function getDaysUntilXmas() {
    var oneMinute = 60 * 1000
    var oneHour = oneMinute * 60
    var oneDay = oneHour * 24
    var today = new Date()
    var nextXmas = new Date()
    nextXmas.setMonth(11)
    nextXmas.setDate(25)
    if (today.getMonth() == 11 && today.getDate() > 25) {
        nextXmas.setFullYear(nextXmas.getFullYear() + 1)
    }
    var diff = nextXmas.getTime() - today.getTime()
    diff = Math.floor(diff/oneDay)
    return diff
}
</SCRIPT>
</HEAD>
<BODY>
<H1>
<SCRIPT LANGUAGE="JavaScript">
var header = "You have <I>" + getDaysUntilXmas()  + "</I> "
header += "shopping days until Christmas."
document.write(header)
</SCRIPT>
</H1><HR>
</BODY>
</HTML>

1.	Demo all methods in Date class
2.	how many days Between two dates
3.	Today's Date
4.	Display date: day month year in string
5.	Date: date, month, and year.
6.	Set date: setDate, setHour
7.	UTC time: getUTCDate returns the Universal Coordinated Time
8.	Display weekday: name of the current day
9.	Display full date : complete date with the day name and month name
10.	Display time: continues writing time per second.
11.	Date: Week of the year
12.	Display current date: year, month day in number
13.	Extending the Date Object to Include Some New Methods
14.	Methods and Properties of the Date Object
15.	Using the Date Object
16.	Output day
17.	A Dynamic Welcome Message
18.	Summer Games Countdown
19.	Simple Date Validation
20.	GMT Calculator
21.	Days Before Next Christmas Xmas
22.	Get how many days before a date

How Many Days Until Christmas : Date « Development « JavaScript DHTML

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