setting part of times in javascript

1var d = new Date();
2d.setDate(d.getDate() + 7); // adds a week to a date
3
4setDate();          // day as a number (1-31)
5setFullYear();      // year (optionally month and day)
6setHours();         // hour (0-23)
7setMilliseconds();  // milliseconds (0-999)
8setMinutes();       // minutes (0-59)
9setMonth();         // month (0-11)
10setSeconds();       // seconds (0-59)
11setTime();          // milliseconds since 1970)
12