datefield format 'M/Y' Problem

[maheshappleg]

Hi,
I am using Ext-js 3.2, in that i face a problem in datefield with a particular format 'M/Y'

Here my code,
{xtype:'datefield',fieldLabel: 'Month/Year ', name: 'monyear', allowBlank: false, format:'M/Y',width:100}

when i choose NOV month it automatically goes to DEC month on (system current date is OCT 31).

if i change the datefield format to some thing else, the thing is correct.

Please help me to solve this problem. thanks in advence...

[maheshappleg]

I check the datefield all the months, if my system date is in 31 of any one month, and i select these months it goes into next month.

NOV/2012 into DEC/2012
FEB/2012 into MAR/2012
APR/2012 into MAY/2012
JUN/2012 into JUL/2012
SEP/2012 into OCT/2012

I cant able to solve this issue. Please help me to resolve this problem.