I discovered an issue with the setPlannerValue method in scalplanner.js

The issue is when the current day is not in the month that is being set.

Example:
Today is 4/30/08
Passing in 2008, 2, 1, 'Test'
var planvalues = Object.isArray(value) ? value : [value];
var plannerdate = new Date(); // setup to 4/30/08
plannerdate.setHours(0, 0, 0, 0);
plannerdate.setYear(year);
plannerdate.setMonth(month - 1); //attempts to set month to 1 but fails...
//day is initialized to 30, 30th day does exist in feb 08
//therefore the month change fails
plannerdate.setDate(day);

Suggested Fix:

Change plannerdate.setMonth(month - 1); to plannerdate.setMonth(month - 1, 1);
Sets day which is set again after the month, without problems.