Помогите написать скрипт для автосмены текста каждую неделю

Уверен, т.к проверял скрипт от и до

Dim565 добавил 02.12.2010 в 14:29

4arger, этот скрипт вообще ничего не показывает

Dim565 добавил 02.12.2010 в 15:03

Всем спасибо. Пока что это работает:

<script type="text/javascript" language="JavaScript"><!--
function y2k(number) { return (number < 1000) ? number + 1900 : number; }

function getWeek(year,month,day) {
    var when = new Date(year,month,day);
    var newYear = new Date(year,0,1);
    var modDay = newYear.getDay();
    if (modDay == 0) modDay=6; else modDay--;

    var daynum = ((Date.UTC(y2k(year),when.getMonth(),when.getDate(),0,0,0) -
                 Date.UTC(y2k(year),0,1,0,0,0)) /1000/60/60/24) + 1;

    if (modDay < 4 ) {
        var weeknum = Math.floor((daynum+modDay-1)/7)+1;
    }
    else {
        var weeknum = Math.floor((daynum+modDay-1)/7);
        if (weeknum == 0) {
            year--;
            var prevNewYear = new Date(year,0,1);
            var prevmodDay = prevNewYear.getDay();
            if (prevmodDay == 0) prevmodDay = 6; else prevmodDay--;
            if (prevmodDay < 4) weeknum = 53; else weeknum = 52;
        }
    }

    return + weeknum;
}

var now = new Date();
var fun=getWeek(y2k(now.getYear()),now.getMonth(),now.getDate());
if(fun/2 == Math.floor(fun/2))
{document.write("Четная")} else {document.write("Нечетная")
}
</script>

Dim565 добавил 02.12.2010 в 17:50

Вот еще один рабочий скрипт:

 <script type="text/javascript" language="JavaScript">
Date.prototype.getWeek = function (dowOffset) {
/*getWeek() was developed by Nick Baicoianu at MeanFreePath: http://www.meanfreepath.com */

	dowOffset = typeof(dowOffset) == 'int' ? dowOffset : 0; //default dowOffset to zero
	var newYear = new Date(this.getFullYear(),0,1);
	var day = newYear.getDay() - dowOffset; //the day of week the year begins on
	day = (day >= 0 ? day : day + 7);
	var daynum = Math.floor((this.getTime() - newYear.getTime() - 
	(this.getTimezoneOffset()-newYear.getTimezoneOffset())*60000)/86400000) + 1;
	var weeknum;
	//if the year starts before the middle of a week
	if(day < 4) {
		weeknum = Math.floor((daynum+day-1)/7) + 1;
		if(weeknum > 52) {
			nYear = new Date(this.getFullYear() + 1,0,1);
			nday = nYear.getDay() - dowOffset;
			nday = nday >= 0 ? nday : nday + 7;
			/*if the next year starts before the middle of
 			  the week, it is week #1 of that year*/
			weeknum = nday < 4 ? 1 : 53;
		}
	}
	else {
		weeknum = Math.floor((daynum+day-1)/7);
	}
	return weeknum;
};
var now = new Date();
var weeknumber = now.getWeek(1);
if(weeknumber/2 == Math.floor(weeknumber/2))
{document.write("Четная")} else {document.write("Нечетная")};
</script>