Convert string date

Dear experts.
How can I transfer a string date into string date of previous year, Ex: 24.10.2008 into => 24.10.2007
Thanks for your reply
Huynh Kim Binh

Hi
I got a solution, fomular is: DSTR(DADD(STORE@Date,-1,'Y'),"DD.MM.YYYY")
Thanks
HKBinh
Edited by: Huynh Binh on Oct 25, 2008 5:17 AM

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http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.1251.html
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