String values

Question

I have developed the following code to create a value for an
upper voucher number limit, to help test the validity of a user
entered voucher number . . .
var upperVoucher:String = new String();
upperVoucher = String(strYear + strMonthNo + strDayNew +
strHour + strMinute + "01");
trace("Upper Voucher Number is: " + upperVoucher);
For today, August 10th, it generates an upperVoucher value of
tomorrow's date at 00:00 for 01 items. This gives a value of
'20060811000001'. This is then tested for in the following 'if'
condition . . .
else if (VoucherNo >
this._parent.Connect_Check.PreviousValidVoucher and VoucherNo <
upperVoucher) {
If the voucher number for today's date is given as
'20060810124103' (i.e. today's date at 12:41 for 03 items), the
above 'else if' statement is returning this as an invalid voucher
number. I have tested this and can confirm that it works when
tested on it's own for being > the PreviousValidVoucher but
doesn't when tested on it's own for being < the upperVoucher
value of '20060811000001'. Yet . . . and this is the really weird
bit . . . when I force the upperVoucher limit to have a value of
'20060811000001' as per the code below
var upperVoucher:String = new String();
upperVoucher = "20060811000001";
trace("Upper Voucher Number is: " + upperVoucher);
IT WORKS! (with exactly the same value!) . . . Why is this?
What am I doing wrong?

Answer 1

I got it!
I didn't the value being defined as a string was the problem
because it had worked in a previous version of the code.
The problem was that in this new version the value for the
strYear variable was
' 2006' due to the following section of code . . .
//Parsing the Date Logic
var strYear:String = new String();
var strYear = (strDate.slice(28, 33));
So I changed it to . . .
//Parsing the Date Logic
var strYear:String = new String();
var strYear = (strDate.slice(29, 33));
This changed the value in the strYear variable to '2006'
(without the leading space). This corrected my error.
Stupid, really, I should have remembered this from my
previous version when I fixed it then!
There's a lot to be said for version control!