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Javascript cookie "Type Mismatch" solution
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I have some javascript ASP code that sets the expiry date on a cookie
to five years from now. The code worked until today, when I got the
following error message:

Microsoft JScript runtime (0x800A000D)
Type mismatch

The code was

var expiryDate=new Date();

Response.Cookies(cookieName).Expires=DateToExpires (expiryDate);

function DateToExpires(myDate)

DateToExpires returns "4/31/2010"; this is the correct format for

See the problem? APRIL HAS ONLY 30 DAYS! I forgot that the value of
theDate.getMonth() runs from 0 to 11. The proper code is

function DateToExpires(myDate)

which returns "5/31/2010" (which is actually 5 years from now!)

I hope that this helps someone.

- David Gauntt

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