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





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>


           
       










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