Get how many days before a date : Date : Development JAVASCRIPT DHTML TUTORIALS

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Get how many days before a date



<!-- 
     Example File From "JavaScript and DHTML Cookbook"
     Published by O'Reilly & Associates
     Copyright 2003 Danny Goodman
-->
 
function getDaysBefore(year, month, date) {
    var oneMinute = 60 * 1000;
    var oneHour = oneMinute * 60;
    var oneDay = oneHour * 24;
    var today = new Date();
    var targetDate = new Date();
    targetDate.setYear(year);
    targetDate.setMonth(month);
    targetDate.setDate(date);
    alert(targetDate);
    var diff = targetDate.getTime() - today.getTime();
    diff = Math.floor(diff/oneDay);
    return diff;
}