Work Week Snippet

<script language="JavaScript">
<!--
var msec_per_day = 24 * 60 * 60 * 1000;

//Purpose: Convert a date into a work week
//Input:   theDate - date object
//Return: a string with the work week containing the date.
function WorkWeek(dateStr) {
    var refDate = new Date("1/1/2001");
    var days    = (theDate.getTime() - refDate.getTime()) / msec_per_day;
    if (days < 0)   return "out of range";
    var week    = Math.floor(days / 7);
    var year    = Math.floor(week / 52) + 1;
    week        = (week % 52) + 1;
    var result = "WW";
    if (year < 10) result = result + "0";
    result = result + year;
    if (week < 10) result = result + "0";
    result = result + week;
    return result;
}
//-->
</script>

Example Usage Example Output

<script language="JavaScript">

</script>
Tuesday, January 01, 2002 00:00:00 is in WW0201

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Last Updated: $Date: 2002/02/03 04:22:48 $ GMT ($Revision: 1.3 $)

Example Usage		Example Output
`<script language="JavaScript">` `<!--` `day = new Date("1/1/2002");` `document.write(day.toLocaleString() + " is in " + WorkWeek(day));` `//-->` `</script>`		Tuesday, January 01, 2002 00:00:00 is in WW0201