Calcuate AGE from DOB, Update Age Automatically

The problem appears to have issues with dates after May 12, of any year, so it is not just the one date. Changing the format of the date to "dd mmm yyyy" resolves the issue or changing the dobValue to a string by using the field's valueAsString or the String constrictor,

I also use some document level functions for the getField and uti.scand methods to incorporate some error checking.

document level functions:

function GetField(oDoc, cName, bMsg)

{

if(typeof bMsg == "undefined")

{

var bMsg = false;

}

var oField = oDoc.getField(cName);

if(oField == null && bMsg == true)

{

app.alert("Error accessing field " + cName, 0, 1, "Get Field Error");

}

return oField;

}

function Scand(cFormat, cString)

{

var oDate = util.scand(cFormat, cString);

if(oDate == null)

{

app.alert("Error converting date time string " + cString + " with format " + cFormat, 0, 1, "Date Time Converstion Error");

}

return oDate;

}

Custom calculation script:

var dobField = GetField(this, "DOB");

var dobValue = dobField.valueAsString;

if (dobValue != "")

{

var dobFormat = "mm/dd/yyyy";

    var dob = Scand("mm/dd/yyyy", dobValue);

    var nTimeDiff = (new Date()).getTime() - dob.getTime();

    var nYears = nTimeDiff /(365*24*60*60*1000);

    event.value = Math.floor(nYears);

}